Archive for New Improved Plants – Page 8

Hydrangea Pruning Made Simple

Spring Hydrangea Pruning

A lot of my clients have asked me to help them with pruning their hydrangeas.

Hydrangea serrata 'Preziosa'

This blog addresses mophead hydrangea pruning.  Hydrangea pruning is simple and easy once you know the rules.  There is a link to a pruning video at the end of this blog produced by Cass Turnball of Plant Amnesty to help you feel more confident.  There are 5 kinds of hydrangeas.  This blog only addresses mophead hydrangea pruning.

 

Hydrangea serrata 'Preziosa'

Why prune hydrangea at all?

Why prune hydrangea plants at all?  Like most plants, pruned hydrangea shrubs will have a better shape so they look good regardless of the flowering aspect.  Many of us buy a hydrangea and think it will be 4’ x 4’.  Over time, many varieties will grow to 7’ tall.  It is very important to plant the right plant in the right place so you don’t have to be frustrated.  There are some varieties that are going to mature at and be easily kept in the 4’ to 5’ range.  We prune to achieve that height as well as a good shape.  If you have a variety that wants to be 7 or even 8 feet tall every year even with proper pruning, the best answer is to remove the plant and buy a variety whose size works for your garden.  Old Arts and Crafts homes with 6’ high foundations are perfect for the hydrangeas that are most cheerful at 7’.  They don’t work as well for homes with a 12” foundation or a small yard.Another reason we prune is to remove stems that no longer flower.

rabbit ears 2

Nicely pruned and open plant

We prune hydrangeas in early to mid March in the Pacific NW.  We start pruning our plants when they are about 3 years old or when you see the oldest stems are developing bark.  Remove the oldest woody canes.  On a young plant this might mean removing only 1 or 2 stems.  We remove dead stems and canes and we deadhead flowers back to the first lateral buds.  I think of these buds as rabbit ears.  I love this task.  I think it’s because I’m close to the ground and my soil smells good.  I typically see 2 colors of buds at this time.  The burgundy buds are just a bump on the stems.  The tiny green buds (the rabbit ears) are such a vivid green.  It says spring to me (and no it doesn’t rain every minute even in March).  These are days when a wool sweater and a down vest are perfect for comfort.

hydrangea 1 heads banner

Joy Creek Nursery Hydrangea Garden

There is more to the story about hydrangea pruning. Occasionally there are individual plants that didn’t read the rule book.  My garden coach client Mary followed the proper pruning techniques and she lost all her flowers for the year!!  AAACK!!  Her plants are 30 plus years old.  Since that debacle Mary only deadheads her plants, again just down to the first buds and she removes old woody stems.  Her plants always flower beautifully and are the focal point of her summer garden.  I’ve never had this happen to me but I’ve heard about it often enough from other professionals to know that some plants are probably genetically different than others.  If you don’t prune at all, your plants will get big and ungainly looking.  A build up of deadwood may diminish their flowering capacity.

For a detailed lesson on pruning mop head hydrangeas, see this video.

Winter Flowers Feed Bees

bee-id-1

Saving Bees? Feed them. Plan for flowering plants from early spring until mid-fall.    Don’t use any pesticides.  Then you don’t have to try to figure out if the claim that it won’t harm bees is true or not.

Honey Bees and Heather FarmWinter flowers feed bees.    It’s easier to provide flowers for bees in our cool early springs than you might think.  What we are learning about saving bees can be made very simple.  Feed them!  Use a diverse plant palette with flowers from early spring until mid-fall. Don’t use any pesticides and then you don’t have to try to figure out what is safe and what isn’t or who to trust.

I have always found summer easy  to provide a diverse collection of flowers for all kinds of bees but early spring requires thought and planning.   My beach house landscape on the Olympic Peninsula is a great example of a very low maintenance and bee friendly garden. The plants I list in this article are from my experiences there and from my landscape design practice here in Portland, Oregon.

Erica Darleyensis Mary Helen

Erica darleyensis ‘Mary Helen’

If you’ve read any of my blogs, heather comes up a lot.  I love to use heather in my personal landscape and for clients where we can create good drainage. By the way, I had to learn how to grow it well.  The fact that many varieties of spring heather feed bees at a critical time is a huge bonus to an already great plant.  Deer don’t bother it, and it’s a glorious and tough ground cover.  Spring heather, native plants and early flowering Spanish lavender feed bees in late winter and early spring. I start out with heather varieties that flower in late January and into early spring.  These plants Erica Carnea – spring heather not summer heather  – are especially great for our native bumble bees who are out and about earlier than honey bees.  The bumble bees can protect themselves from sudden changes in temperature by nestling down in the thick foliage if they get too cold. I’d use the word cuddle but my inner 5 year old who hated the heather at our  front walk because it was buzzing with bees . . .  won’t let me!   Heather provides a lot of nectar for the bees because of the hundreds of tiny flowers on each plant. The flowers are just the right depth for different sizes of bees.   Some tube like flowers are better for hummingbirds but the heather flower (which is a tiny little tube) is just right for bees.  Here are some early flowering spring heather varieties I like:

‘Bells Extra Special’
Foliage goes to a whiskey color with flecks of orange in the cold, the flowers are a strong purple red and best of all it’s only 4 inches high.  It spreads to about 16” wide January to May.  This short compact plant is unusual among the spring heather,  most are 6 to 8 inches high.

December Red
Clean dark green foliage with Cabernet red flowers – 8” high and spreading to 18” November to April.

Adrianne Duncan
Has a strong violet purple flower and is more compact than typical,  6” high by 18” spread.  It flowers later than Bells Extra Special.  I like to put these two together for foliage contrast.

Erica darleyensis ‘Mary Helen’
Sports an interesting gold bronze foliage in winter and lots of flower power in February to April. These plants are grown locally by Highland Heathers in Canby, Oregon.   This grower supplies retail nurseries, special plant sales such as HPSO Hortlandia spring plant sale and you can buy directly if you make an appointment. You won’t find these varieties at a big box store.  The common varieties get too big for most landscape situations and then you end up hacking at them and then they are ugly and out they go.

Three things to pay attention to for success with heathers

  1. Soil prep
  2. Proper watering
  3. Yearly Pruning

A lot of my other early spring flowering plants are Pacific NW natives.  Rubus spectabilis, Salmon Berry,  has a spectacular colorful spring flower with 75 to 100 stamens which will keep bees busy for a long time.  This flower 220px-Rubus_spectabilis_1855calls the early bumble bees by the droves.  This shrub has thorns and needs a bit of room so think first and plant second.  Our Oregon grape,  Mahonia aquifolium, my evergreen huckleberry, Vaccinium ovatum, and the hot pink red flowering current edge the light woods around the house and provide for the various local bees.   Some people don’t like Oregon grape because the leaves can get winter damage and have ratty looking leaves by early spring.  I say no problem, let them flower to provide for wildlife and then cut them down to the ground.  They will re leaf into glossy and good looking foliage for the rest of the year.

We know English lavender is great for bees in the summer.  Like heather, all lavender has hundreds of tiny flowers and is an abundant source for nectar.   Spanish lavender flowers much earlier than English lavender and provides for mid spring to early summer nectar. We need good drainage to be successful with with Spanish lavender but this often just means mounding up a few inches.   Don’t over water Spanish lavender.  I water mine once a month and am not sure it even needs that now that the plants are old.

Lavender at Joy Creek Nursery

Lavender at Joy Creek Nursery

lavandula winter bee

Lavandula stoechas ‘Winter Bee’

There is a newish variety called ‘Winter Bee’ grown by Blooming Nursery, a local wholesale grower. They claim it flowers 3 weeks earlier than other Spanish lavender and have named it accordingly,  Lavandula stoechas
‘Winter Bee’ PP #20,840.Up at my vacation house my Spanish lavender flowers in early April to mid summer.  I have seen flowers on them in March.  After the main flowering, I cut it back about 1/3rd and get another lovely hit of flowers in late summer into early fall. Here are three spring flowering Spanish lavender varieties I have grown: ‘Blueberry Ruffles‘, ‘Hazel, and ‘Mulberry Ruffle’s‘.  Blooming Nursery sells to many of the larger garden centers but don’t look for their plants at a box store; they won’t be there.

This unusual variety is compact and flowers earlier than most Spanish Lavender.

This unusual variety, ‘Mulberry Ruffles’, is compact and flowers earlier than most Spanish lavender.

Last of all, the best early flower for bees at our beach property isn’t what you would think of as a flower probably.  It has to be the huge old Oregon Big Leaf Maples down at the edge of the beach.  When they flower, the sound of bees is a low roar, I am not kidding.  My grandkids are a little nervous and tend to stay out of that area for a while.  Bees will earn respect if need be but otherwise I find them easy to get along with.  I do flinch when a bumble bee takes a dead run at me… and then I scold them for being bossy. There is enough room in the garden for everyone.

Unusual Flowers to Attract Hummingbirds

Unusual Flowers to Attract Hummingbirds

Today I want to share “Hummer” plants with hot colors for summer that are unique.  I will also list a few very colorful plants that  feed the overwintering hummingbirds in winter.

imagesHardy Fuchsia may be considered common for feeding hummingbirds 8 months out of the year.  Here are 3 varieties that are available locally (Portland, Oregon) that are a little different.  This type of fuchsia is a perennial and not anything like the fuchsia baskets that live in shady patios.  These fuchsias need sun and will come back year after year with simple care.

‘Golden Gate’ Hardy Fuchsia has hot gold leaves and shocking red pink flowers.  It is much smaller than the typically ‘Aurea’ and is an upright shrub instead of a wide vase shape.  It will fit into a smaller garden much better than ‘Aurea’ which can grow 4′ across easily.  We have a local source, a wholesale grower, Jockey Hill, who sells retail at Scappoose Saturday market.

Fuchsia Magellnica ‘Isis’ – this is great against a wall and while the leaf and flower are tiny, it can become a tall column (8′ – 10′) or it can be cut back hard every year and kept in the 4’ range.  Hundreds of flowers will interest many varieties of the larger bees as well as hummingbirds.

President’  Hardy Fuchsia.  It has a dark maroon leaf which is very unusual. This can be hard to find.  We have a local wholesale grower, Jockey Hill, who sells retail at Scappoose Saturday market.  It grows into a wider than tall shrub with purple and red flowers.

agastache-kudos-mandarin Terra Nova photoAgastache, also called Hummingbird Mint, are hot plants for long flowering summer color and for hummingbirds.  My old favorite variety is called ‘Apricot Sunrise’ and is an Agastache aurantica.  There are many new varieties of Agastache that I am very excited about.  ‘Summer Fiesta’,  ‘Summer Sunset’, ‘Kudos Manderin’, and ‘Kudos Coral’ are newer varieties that are more compact.  All of these Agastache are fragrant and smell strongly like mint or apple mint depending on the variety.

If you provide good drainage (think about planting on a low mound of soil), and don’t over water or fertilize …… it can live for years.  I often mulch around these plants with a cup of tiny crushed rock or pumice and I also tend to plant Hummingbird Mint in a raised planting.  Even 4” above the rest of the soil will improve drainage.

Agastache ‘Summer Glow’  did very well in a client’s gardenagastache-kudos-coral until a local rabbit ate them to the ground one too many times.  I love this exact variety, ‘Summer Glow’, because even after the glowing creamy yellow flowers are gone, the mulberry calyeces (under each tubular flower) stay on the plant until frost.  This color is soft but truly does glow especially in the evening.  This variety, like the hummingbird magnets above, results in 3 months of color in the garden.  It’s not red so isn’t as attractive to Hummers.

Here are three great hummingbird attractors for winter:

191 spring promise camellia

Camellia Sasanqua ‘Springs Promise’

 

 

 

Hybrid ‘Springs Promise’ is a new vivid rose red winter flowering Chinese Camellia.

 

 

Correa 'Dusky Rose'

Correa ‘Dusky Rose’

 

 

 

Correa ‘Dusky Rose’ Australian Fuchsia is available locally at Cistus Nursery on Sauvie Island.

 

 

 

Arhtu Meziezies Mahonia

‘Arthur Menzies’ Mahonia – photo from Forest Farm.

Mahonia x media ‘Arthur Menzies’   Think small tree so 15’ by 8’ wide.  The fragrance alone is amazing.  It is a coarse but attractive blue green leaf, the flower is a soft but strong yellow and is beloved by the Anna Hummingbirds.  At times you can find it at Portland Nursery, Cistus Design Nursery or Xera Plants, Inc.

You can also order a small plant from Forest Farms

 

 

 

For typical plants that attract hummingbirds go to my video for About.com. http://landscaping.about.com/video/Best-Flowers-to-Attract-Hummingbirds.htm

 

 

Planning for a Cheery Winter Landscape

Entry focal point at Hilton Residence Inn in Raleigh Hills, OregonLet’s start with art.  An art object does not need pruning, watering or fertilizing.  Art, particularly large art, is a way to get a powerful all season effect in the landscape.  Place it so you see it from the most used room of the house.  Add a little night lighting and really get your money’s worth.

Shapely trees and large shrubs with attractive branch structure will make 75% of your most dramatic winter picture.  Buy trees or shrubs already pruned and shaped beautifully. There are specialty growers who do this as part of their marketing niche, or hire a landscape gardener or an arborist to turn your trees and shrubs into winter beauties. Out here in the NW it’s Nancy Buley with Treephoria and while her plants are grown way out in east county she comes in to some of the farmers markets to make it easier for you to connect with her.

Red Camellia in L. Waldron Garden

Red Camellia in L. Waldron Garden

Here’s a series of shapely shrubs/small trees with cheerful bright winter flowers.  My favorite of the chinese camellias is still Camellia Sasanqua ‘Yuletide’ but the growers have created a whole line of plants similar to Yuletide but in different flowering colors and different flower timing.  Here are a couple of new ones I’m excited about.  ‘Springs Promise’ a chinese camellia from Monrovia has an unusual orange red flower, a color hard to find in winter.  The tree can be trained into a vase shape, an espalier or a thick shrub.  We will see if the hummingbirds like it as much as they do the true red of the Yuletide variety. ‘Pink a Boo’ also has the smaller dark green glossy leaves (like Yuletide) but is that perfect frosty intense but pale pink.  Camellia Sasanqua ‘Marge Miller’ is the only plant with a weeping shape.  I’ve only used it once and am eager to get photos this January when my client Karen’s plant starts to flower.

calluna-vulgaris-robert-chapman360 port nursery

Calluna Vulgaris ‘Robert Chapman’ lights up in winter cold.

To have a cheery winter landscape we need plant color low on the ground with a dark mulch or hemlock bark to dress the raw earth.  Too much mulch or raw muddy earth looks unfinished especially for a front yard.  In the back yard your dog will happily churn up that mud and bring it in so I like to see it covered.  Many people here in the Northwest like to have the soil covered with plants to conserve water, lessen the chore of weeding and for style.  Others find it too busy and want to see the space around the plants as part of the design.  No one wants mud so we all agree on that.  Plant selection:  Use plants that turn on the color in winter cold.  The foliage of heathers light up in reds, russets, ambers, and golds.

Calluna heather at Cooper garden

Calluna Vulgaris ‘Winter Chocolate’

Hot Winter Twigs

Cornus Sanguineum ‘Midwinter Fire’

For a January pick me up, we cannot beat a red twig dogwood or scarlet willow, although planning for space is an issue with these plants. The twig dogwood shrubs and small trees  light up in hot reds, burgundy and yellow.

Notice what is going on outside.  If you have become a person who never ventures out in the winter……give yourself a gentle little shake, put on some warm clothes and get out there and see what is going on.  Slow down enough to notice light on the tree stems, chilled dew on a leaf, and the leaf buds swelling on your Japanese maple in preparation for spring.  This is good for our spirits and our minds.

3 Colorful Shrubs for Fall

Compact Burning Bush
The most popular variety of Euonymus alata ‘Compacta’ because people think it will be small, say 3′ x 3′.  It is not the least bit small and easily grows into a beautiful small tree.  The smallest variety on the market is called ‘Rudy Haag’ 5′ x 5′.   Even the variety called ‘Pip Squeak’  is 6′ x 5′.  If Burning Bush is not placed with room to grow, these shrubs get turned into ugly muffins by frustrated gardeners.  If it is sheared properly, thinner at the top and wider at the bottom, this can be a very attractive hedge but it will need to be sheared two or three times a year.  Ugh! Too much work for me.

pipsqeck burning bush monrovia 8959268-largeI love to use this shrub as a shree (part shrub, part small tree).  A client of mine, Ruth in Scappoose has hers planted in full sun and pruned into small multi-stem trees.  They are underplanted with a hot orange summer flowering Euphorbia which is a wow combination.  These “shrees” have been in their location for over ten years and they are not irrigated at all. Other than having a professional pruning every year or three, this privacy planting is very low maintenance and simply stunning. The ridged and winged bare stems of the Burning Bush are attractive and add winter interest.  To establish this plant, water it once a week, or twice in hot weather.  Once established, it will thrive with once a week watering.  As it ages in place it needs less and less water.  A plus … The deer don’t bother this plant in Ruth’s garden.

Fothergilla 'Mt Airy', (Bottlebrush) in full fall color.

Fothergilla ‘Mt Airy’, (Bottlebrush) in full fall color.

Witch Alder (also called Bottlebrush)
This shrub has two seasons of wow, one is spring where the fragrance is heavenly, the bottle brush flowers are attractive in flower arrangements and if pruned properly, the shape of this “shree” will look good year round.  The 2nd wow is the fall color.

Fothergilla (BottleBrush) fragrant flowers on naked stems delight in spring

Fothergilla (BottleBrush) fragrant flowers on naked stems delight in spring

This plant, Fothergilla ‘Mt. Airy’ will need regular water until it has been in place for many years. Almost all plants, even those listed as drought tolerant, look better with some irrigation in our Pacific NW Mediterranean style summer. See fabulous colorful art made from these leaves!!!

Gatsbys Moon Hydrangea

Hydrangea Quercifolia Oakleaf Hydrangea ‘Gatsby’s Moon’ is a new variety from Proven Winners.

Oakleaf Hydrangea 
I’ve written about this plant many times but that’s because it’s so great.  The full size plant may not fit in most landscapes but there are two semi dwarf plants that will.  These plants have huge white conical flowers in mid- summer that fade to a nice pink.  In fall the large and well textured leaf turn the most fabulous rich reds and stay on the plant well past Thanksgiving.  These leaves always go in my Thanksgiving table centerpiece.  Once the leaves fall, there is great rusty exfoliating bark on the stems that glow in the winter light.

Hydrangea quercifolia, Oakleaf Hydrangea ‘Sikes Dwarf’ and ‘Pee Wee’ are the two varieties I use the most. They are NOT tiny shrubs, still expect a 3′ to 4′ wide and tall plant.  My experience is that ‘Sikes Dwarf’ is taller than ‘Pee Wee’.  The leaves are smaller than the species, 4 to 5 inches instead of 8 to 10 inches and they still have the interesting grainy texture and great flowers. One drawback … deer seem to like the leaves.  It is native to the South Eastern United States.

It’s easier to prune than a traditional hydrangea AND it doesn’t need as much water.  If you want you can cut it off at the ground in late winter and start over.  Here is a video “How to Prune Oak Leaf Hydrangea”  by Cass Turnbull of Plant Amnesty.