Testing the limits: 2015 winners

If you're going to "test the limits" you have to be willing to take a few losses.  That was the point of my previous blog post (see Testing the limits... and finding them: 2014-2015 losers) when I wrote about the plants I lost last winter, which along with 2013-2014 brought my area's two coldest winters in 20 years.  Each of those two winters, on its own, wasn't so unusual; we get winters like that every 10-15 years and we were several years overdue.  What was unusual was getting two such winters back to back.  That makes the survivors all the more special to me.  They don't necessarily look their best this year, but considering the minimal protection I gave them I'm more than happy.

Big Begonia grandis

Begonia grandis in a private garden near Baltimore, Maryland

I'm just back from attending the Perennial Plant Association (PPA) national symposium in Baltimore, Maryland.  I've only recently joined this organization, having been talked into it by my friend Janet Draper.  And I'm so glad she did!  I just spent an amazing, exhausting, energizing 5 days of talks, garden tours, trade show, and best of all, spending time with several hundred fellow plant geeks, including at least a dozen people I already knew from Facebook but had never before met in person.  I took over 500 photos, and it's going to take a while to get them processed and uploaded to my Flickr account.  For now I'll just quickly share some photos of the first plant (of many!) that blew me away: Begonia grandis, a.k.a. "hardy begonia".

Begonia update

Begonia hybrid seedlings

Begonias have been a sorely-needed bright spot in an otherwise bad gardening year.  Two cold winters in a row, combined with more than my usual degree of neglect, have taken a hard toll and I've had many losses.  But those losses have opened up some opportunities, bringing more sun into what was an increasingly overgrown garden, and opening up some space to try new plants.  And among the losses, I've had a few pleasant surprises.

Spring waits for no man

Herbaceous peony (unknown cultivar)

A couple of weeks ago I wrote about the three days of glory (rarely four, often two, sometimes as little as one) my tree peony gives me.  It's always one of the first plants to bloom in my garden, in fact one of the first to stir at all, showing new growth long before the threat of frost is past (although oddly enough, the flowers have never been nipped by a late frost).  Tree peonies aren't really trees; they are hybrids derived from Paeonia suffruticosa (whose Latin name means "kinda shrubby") and related species with persistent woody stems that might grow a few feet tall at most.  Now it's time for the more familiar herbaceous peonies, the perennial kind that dies to the ground every winter, and tend to bloom a bit later.

Three days of glory

After a long, cold winter and a late, chilly spring--followed by a week in Buffalo--I finally enjoyed a perfect spring weekend, feeling a bit guilty about not working in the garden but happy to just enjoy the warm weather and appreciate the flowers.  Stealing the show today is my tree peony, an unknown cultivar that is one of the very few plants I've kept from the previous owner.

Spring forward?

Crocus carnage: Bird?  Squirrel?  Gremlins?

Spring is never a straightforward season and March is especially unpredictable.  I had 77 degrees (25° C) two days ago, and a frost last night.  I guess I shouldn't complain too much because it snowed in Buffalo yesterday!  But complain I will, because when I came home from work last night I discovered that, just as they were about to open, some critter had nipped off nearly every bud on my 'Ruby Giant' crocus.  @$%&#!

Hope springs eternal - or - another good winter for testing hardiness

New begonias

I came back from Behnke Nurseries, a great local garden center just outside DC, with a few new plants in the back seat today.  How could I pass up these beautiful rex begonias from Foliera?  Especially at 20% off!  Call me an optimist, because I'm pretty sure I'll have room to put these new begonias somewhere in my garden this spring.

A new hardy begonia?

Unnamed begonia hybrid (August 2014)

I'm leading with a photo from last summer because that's what this blog post is ultimately about.  And hoo-boy, could I use some warm weather right now!  This has been a slow winter for me, with MANTS being an isolated bright spot of horticulture in the middle of January (see Beating the winter blahs at MANTS).  This hasn't been a bad winter for Washington, DC but I'm just back from an extended visit to Buffalo to help out with my dad, who is in a nursing home following a major stroke and was in the hospital for the last 6 days of my latest visit.  This was an exhausting visit, and to add insult to injury the weather was awful but for once it worked in my favor: there was a weather advisory on the day of my scheduled departure and I was able to extend my stay for an extra 3 days without any additional fee.

Beyond Begonia grandis: new hardy begonias

Begonia grandis, white-flowered form

Many gardeners are familiar with Begonia grandis (a.k.a. B. discolor, B. evansiana, B. sinensis), a tuberous species from China commonly known as the "hardy begonia".  The name is well-earned: this truly is the hardiest species in a huge but mostly tropical and subtropical genus, going dormant in the winter and able to survive freezing temperatures into zone 6.  But for a very long time, the most exciting news about hardy begonias was that they came in white as well as pink.  In a genus with so many flashy plants, neither the foliage nor the flowers of B. grandis are terribly exciting.  The leaves are handsome enough, and the pink or white flowers are nice coming so late in the season... and darn it, it's a hardy begonia.  But hardiness is mostly what it has going for it, and is offset by the thing being downright weedy.  It produces little aerial bulbils that act like seeds, dropping all over to produce a steadily-growing colony that will eventually crowd out smaller and slower-growing plants.

A year of blogging

Garden one year ago

Today marks one year since I started this blog and published my first post.  The most immediate reason for blogging was the shutdown of the federal government last year: being stuck at home for an indefinite period of time, I decided to use my time productively rather than watch TV and surf the web!  I had been thinking about blogging for a while, and in fact had tried my hand at blogging once before (I was particularly proud of Transitional Species in Insect Evolution, about the evolution of termites from social, wood-eating cockroaches); but before I get too self-congratulatory I should also note that my previous attempt at blogging lasted just over a year!  Finally, after years of posting commentary and photos on several plant and gardening-related websites and discussion lists, I realized that in a very real sense I was already blogging; I might as well pull it all together on one site, attached to my own name.  Plants and gardening have always been a passion for me, and I hoped to direct and focus that passion.

Raleigh, part 2: Plant Delights Nursery and JC Raulston Arboretum

Crinum and Yucca

[Part 1 here: Southeastern Palm Society summer meeting.]

I spent a pleasant and only moderately wet morning taking photos at Plant Delights Nursery and chatting with Tony Avent.  In retrospect (especially considering the afternoon rain that made photography nearly impossible later in the day) I probably spent too much time with the begonias, but that's one of my current interests and it's what I wanted to see.  Tony is very interested in begonias (although I've yet to find a plant group he's not interested in) and has acquired quite a collection of species and hybrids at the nursery to test for hardiness and commercial potential.  We compared notes at length on hardy begonias, not just B. grandis but several other species and hybrids that are proving to be fairly hardy, as well as my own efforts to breed hardy begonia hybrids.

Recovery

This has been a bit of an odd spring for me and my garden.  After my area's coldest winter in 20 years, here it is the last day of May and I'm still waiting to see what survived and what didn't.  Many plants that I thought for certain were dead and gone are finally showing signs of life, so in the meantime I'm trying not to disturb plants that may or may not be alive.  For example, just a few days ago I decided to transplant something, and accidentally uncovered a begonia that was sending up a strong new shoot from deep underground.   Just this morning I discovered hardy elephant ear Colocasia 'Pink China' finally coming up, and two new shoots on my hardy banana (Musa basjoo).

So I'm holding off a bit on planting new plants, although it's killing me not to fill the gaps left in my garden by dead or badly damaged plants.  (You can see in the photo above my recovering windmill palm at lower left, and a seemingly dead fig at upper right).   I've also lost much of my shade, so I'm not certain where to plant the gazillion potted begonias from my breeding program that need to get into the ground soon.  My window to get everything planted, before summer heat, humidity, and mosquitoes make gardening unbearable, is rapidly closing.  At what point should I declare plants dead and plant new ones in their place?

It will be quite a while before my garden is anywhere near back to normal, and it will look nothing like last year's garden.  That's the nature of this hobby; every year is different, and our creations grow and change, sometimes in the ways we planned but often in ways we never expected. 

Spring has sprung

Iris 'Buckwheat'

What a relief that spring is finally here!  In fact the last 3 days have felt more like summer, humid and with highs close to 80.  In addition to the spring perennials cheering me up, I'm seeing recovery on several plants that were badly damaged by the winter and that I thought (or feared) were dead.  To recap, this was the Washington, DC area's coldest winter in 20 years, and was a good test of all the marginally hardy plants we're growing here!  The low in my own yard was about 5 degrees in early January, with several more lows in the 9-12 degree range and several periods of temperatures well below freezing.

Hardy begonias emerging

Begonia pedatifida showing creeping rhizome and new growth

To most gardeners, "hardy begonia" means Begonia grandis, a tuberous species from China that for years has been considered the only reliably hardy member of this huge but mostly tropical and subtropical genus.  That has changed as recent collections in China have turned up a number of rhizomatous species that are also fairly hardy.  I'm trialing several of these in my zone 7 garden (see But where are all the begonias?) and some of them are already emerging after my area's coldest winter in 20 years.

The begonia that broke my heart

Unnamed begonia hybrid, a heartbreaking beauty (June 2012)

I hope to (eventually) blog about some of my successes with begonia breeding, but for now I'm going to describe one of my failures.  The plant in the above photo is one of my own hybrids, photographed in my garden in June 2012, from a cross I made in 2011.  I call it a "beautiful failure" because it ultimately failed several critical tests, and as of 2013 I'm no longer growing it at all.