SOME LIKE IT HOT
Exotic Grapes
You’d think that I’d be over and done with the greenhouse this time of year. Spring vegetables and flowers have been germinated, pricked out, grown on, and all established in their homes in the garden.
But no, the greenhouse is still chock full of goodies, plants that tolerate heat. The first plant to jump out at you (visually) as you pass through the greenhouse door is a grape vine. Not just any old grape vine, but a vinifera grape vine (Vitis vinifera). “Vinifera” is the species of European wine and table grapes. They’re generally neither cold-hardy here, nor can they fend off attacks of our native insects and diseases, so have been hybridized with hardier and tougher American grape species, such as the fox grape (V. labrusca).
Point is, the grapevine in my greenhouse could not survive outdoors here. The variety I’m growing is Perle de Csaba, a table variety, which first fruited here a couple years ago; it’s seedless and sweet, with a strong aroma.
I grew it in a large pot, then didn’t move the pot, so it’s roots have sneaked out the pot’s drainage holes and into the moist, compost-enriched soil below. That’s fine. It’s in a good place, it’s stem now trained to climb up a chain to one of the greenhouse rafters. Short, fruiting shoots grow off up and down on either side of that permanent stem, a perfect bunch of grapes dangling from each of those shoots. Read more
EASY CHERRIES
Sweet, Juicy, & Tolerant
Nanking cherries (Prunus tomentosa) are now at their peak of perfection, sweet and sprightly flavored, brilliant red in color, still firm, and, as usual, abundant. Nanking cherries are very juicy and not stingy to release the juice. Straight up, it’s the most refreshing juice imaginable.
You’ve never heard of Nanking cherries? Understandable since they are an uncommon fruit. (And warranted a whole chapter in my book Uncommon Fruits for Every Garden, now out of print but in the works for updating and expanding.) As the name tells you, they are native to China, more generally to the cold, semi-arid regions of Asia. This provenance tells you something about the toughness of the plant, where it weathers winter temperatures below minus 20 degrees F. and summer temperatures as high as 110 degrees F. Read more
WISTERIA UPS AND DOWNS
Shoots vs. Flowers
Around this time of year, few plants are as dramatically beautiful as a well-grown wisteria, whose chains of lavender flowers drip like little waterfalls from the branches. I’ve always wanted one, and now I have one. 
But I’ll keep in mind a common complaint people have with wisteria: The frustration when a wisteria plant is all shoots and no flowers!
This problem has some causes and some solutions. The common complaint can often be traced to something as simple as a poor plant or a poor site. Perhaps Read more
