Showing posts with label shrubs. Show all posts
Showing posts with label shrubs. Show all posts

Thursday, October 19, 2023

Season of the Witch

Hamamelis virginiana flower
 I love witch hazels, Hamamelis sp. And even though summer is my favorite season, I also love Halloween. So it's time for the convergence of those two loves; our native Hamamelis virginiana is in bloom!

For those not familiar, witch hazels are large, multi-stemmed shrubs native to woodlands of North America, Japan, and China. They generally grow 15 feet tall and wide, with a spreading branch habit. In gardens they prefer a fair amount of sun for best flower bud formation, but are shade tolerant. They are ideal for bright shade gardens as mid-story accent plants. They like a soil with organic matter, but are adaptable to any site that isn't dry or wet. 

Hamamelis virginiana ranges from Nova Scotia to Minnesota and south to Florida and eastern Texas. The flower buds of H. virginiana are formed on new growth and start blooming in October and can last into December. Flowers are generally yellow, but can be orange to red as well. They may or may not be fragrant; fragrance is affected by local conditions as well as genetics. They are mostly pollinated by flies and moths. Though they are pollinated in fall, fertilization of the ovary actually takes place in spring!  

Hamamelis virginiana flowers

Foliage during the season is green and shaped like hazel. Fall Color is yellow and often hides the flowers. Color starts in October, with leaves dropping by early November here in Wisconsin.  

Twigs are pliant when young (which is where the witch  part of the common name comes from - wiche or wych) and older wood is dense and strong. All parts contain several phytochemicals and extractions have been used for centuries as antiseptic, astringent, and anti-inflammatory; but so far those uses aren't well-supported by clinical evidence.

Seeds also ripen in Autumn, and the seed capsule splits explosively, ejecting seeds 30 feet or more. Seeds have a complex dormancy and can take two years to germinate. 

H. virginiana 'Little Prospect'




There are many selected forms of H. virginiana. 'Harvest Moon' and 'Phantasm' were selected as being heavy-blooming. 'Little Suzie' is a dwarf selection, growing to about 8' tall and wide. 'Mohonk Red', 'Vincent's Red', and 'Copper Curls' were all selected for having orange to red toned flowers. 'Green Thumb', 'Little Prospect', and 'Lemon Lime' are all variegated forms with yellow and green foliage. The first two are very similar, with wide yellow margins surrounding dark green centers. 'Lemon Lime' has green leaves splashed with yellow. All of them grow to around 10' tall and wide. 'Winter Champagne' was selected for being later blooming, in December in southern Wisconsin and March or April here in the north; it's also vigorous, and larger growing to nearly 20' tall and wide. Tim Brotzman thinks it's likely a hybrid between H. virginiana and H. vernalis, and I'm inclined to agree. 

Witch hazels really extend the season; H. virginana is the last thing to bloom here in the north and the other species and hybrids are usually the fist plants to bloom in spring. They also all tend to have good fall color. They're one of my favorite large shrubs and more people should be growing them. 

Hamamelis virginiana fall color

Thursday, June 6, 2013

Dynamite Deutzias!

Deutzia gracilis 'Nikko Dawn'
I've never completely understood why Deutzia don't get more attention.  Homeowners sprucing up their yards and Avid gardeners alike seem to ignore them.  Some can get somewhat large (6-8' tall and wide) and they require some annual pruning maintenance post-flowering to look their best; but so does Physocarpus, and all varieties of that fly off the shelves. 

Deutzia generally have multiple seasons of interest.  They are heavy bloomers, usually in late spring here, with white to pink flowers that last for weeks.  Foliage is attractive, generally pest and disease free, and dear resistant.  Fall color is often quite good, turning shades of burgundy or plum.  Many varieties are hardy to at least zone 5, though some twig dieback can occur.  After flowering it's beneficial to remove old ugly stems to keep plants looking best.  Deutzia is tolerant of many soil types including clay soils, as long as soils aren't too wet. 

So what Deutzias do I like?  Most of them!  A couple of years ago I picked up D. gracilis 'Nikko Dawn' when Asiatica was shutting its doors.  This is a wonderful and beautiful variegated selection of 'Nikko'.  It will stay compact just like 'Nikko', in the 2' tall x 3' wide range and seems like a pretty good grower.  I just stuck a bunch of cuttings, hopefully a good percentage root and we can offer them for sale next season.  Rare Find offers this as 'Nikko Variegated'.  They also obtained it from Asiatica, not sure why the difference in name.  Spring Meadow nursery has introduced a very similar variety to the Proven Winners line called Crème Fraiche™, it should start showing up at garden centers next year.

Deutzia gracilis Chardonnay Pearls™


Speaking of Proven Winners, a number of years ago they introduced a beautiful golden form of D. gracilis called Chardonnay Pearls™.  Bright gold foliage, white flowers, compact 2-3' tall and wide habit all in a plant for partial shade sounds like it should be an easy sell.  Gardeners don't seem very excited about it though and it seems to sit on the retail bench.  Mine have performed beautifully and are currently ready to explode into bloom.  Fall color is a beautiful burgundy.  I need to trim a little twig dieback off every spring, but they fill in nicely.  I have four of them, that alone should give you an idea of how I feel about this variety. 


Deutzia setchuenensis var. corymbiflora



My most recent purchase in this wonderful genus is Deutzia setchuenensis var. corymbiflora.  Despite being known in horticulture since 1895, this is not well known in gardens.  I first encountered it last year when we got some in from Monrovia.  They were so heavy with blooms, you could barely see any foliage.  They arrived again this year and I picked one up immediately.  This one is a little bigger, reaching 4-6' tall and wide.  Most of what I read says summer flowering; Missouri Botanic Garden however has a flower chart showing it to be in bloom in May and June.  Time will tell what the average bloom season is for Wisconsin.  I will try to root cuttings of this one as well.

Deutzias need more love!  If you're out plant shopping and spot one of these beautiful plants, pick one up and squeeze it in somewhere.  Trust me, your landscape doesn't need another spirea!
Deutzia gracilis Chardonnay Pearls™


Wednesday, April 10, 2013

Really Cool New Plants Added to the Catalog!

We're really excited to be vending at two events this year, the Manitowoc Garden Fair and the American Hosta Society Convention.  Because we're excited, we want YOU to be excited too!  So we're buying some really awesome plants in to add to the catalog!  The first batch is here and potted up, the next batch will be coming next week or the week after, and the 3rd batch will be ordered next week.  Pictures will be added to plant descriptions in the catalog as soon as I have a chance to take photos.  

Calycanthus x raulstonii 'Hartlage Wine'
I won't tell you what's coming until it's here, because I don't want to have to say "sorry, that didn't show up." But the first round of plants is here, and features some very rare varieties:

Hydrangea anomala petiolaris 'Early LIght'