Another of our favorite fall alliums is the lovely Allium kiiense, which hails from the Honshu Japan penisula by the same name. Last year, we had so many plants that went unpurchased, we planted a mass instead of throwing them out. Below is that mass in full flower this week. Hardiness Zone 5a-9b.
Flowering this week is the lovely fall-flowering Allium thunbergii. This specimen is a 1993 Dan Hinkley collection from the Heuksan Islands, well off the coast of South Korea. Many of the plants on the Heuksan Islands have been isolated so long, that they have speciated (evolved into a new species). In this case, this plant sort of keys out to Allium thunbergii, but not exactly. We find this to be a superb, fall-flowering rock garden specimen, and one we hope to get propagated in the future. The first bulbs will go back to Dan for his home garden. Hardiness Zone 6-8.
On my very short commute home, we’ve designed beds along the way that help relieve the stresses of the day. One of my favorite beds in summer is this combination of Allium ‘Millenium’, Sinningia tubiflora (white), Verbena bonariensis, and Pervoskia atriplicifolia. Both the sinningia and the verbena can be a bit aggressive in some areas of the garden, but not here, where they’ve all reached a happy equilibrium. Not only are they visually attractive, but this bed is awash with pollinators, despite none of these plants being southeast US natives.
Flowering in the garden in late April were an array of amazing Alliums. The top image is Allium ‘Ambassador’, a hybrid of Allium stipitatum x giganteum. This sterile gem is a 2005 release from the breeders at Hollands’ Fa. A. Langedijk.
Below that is the smaller Allium drummondii, a native to the prairies from South Dakota to Texas.
Starring in the rock garden in early December is the amazing Allium virgunculae ‘Alba’. This delightful dwarf allium to 8″ tall is similar to the better known and slower offsetting Japanese Allium thunbergii. Allium virgunculae, which typically has lavender flowers, hails from Japan’s far south Kyushu Island.
We’ve got some really superb unyaaw’s blooming now. Actually, if you’re not of the Cajun persuasion, they’re onions…of the genus Allium. The North American native Allium canadense is quite showy in the late spring/early summer garden. The first is a superbly dense flowering selection, Allium ‘White Flag’, made by the late bulb guru, Thad Howard. Allium canadense var. lavendularae is a lovely purple-flowered form. Purple seedlings pop up occasionally in wild populations, but we’ve been able to isolate a particularly nice purple form from light lavender flowering plants that originated in Kansas, shared by plantsman Aaron Floden.
Allium ‘Ostara’ is a new bulbous ornamental onion from a cross of the lovely, but difficult to grow (in the southeast US) Allium karataviense and Allium atropurpureum. We’re growing this in our crevice garden, which is working well…so far. We’re hoping the genes from Allium atropurpureum will make this more growable.
Although it’s a bit late, we wanted to share a new image we took of Allium kiiense in the gardens last fall. For us, this is one of the best small alliums for the garden, but because it flowers so late in the year (2nd week of November for us), few people ever see it. Every year, we produce more than we can sell because we keep assuming that word of this treasure will finally get out in public. Since it has a slightly pendant habit, Allium kiiense is best located where you can see it close up, and ideally from slightly below.