Easy Fall Planting
Hardy for horticultural zones 5 through 7, Allium Ambassador bulbs should be planted in the fall when the soil has cooled down to about 55ºF. These plump, 20 cm bulbs should be planted 6" to 8" deep and 8" to 10" apart with the pointed sprouting tip up, and the basal plate down (the bottom of the bulb where the roots grow).
Allium Ambassador needs a minimum of six hours of daily sunlight and well-draining, neutral pH soil. Over time, it benefits from an organic, granular 4-10-6 or 5-10-5 fertilizer top dressing three times a year: in the fall, the early spring and as the flower starts to die back. Never put fertilizer within the planting hole because it could cause root burn.
If the winter threatens temperature spiking and/or inconsistent snow cover, Allium Ambassador would benefit from a 2" layer of mulch applied after the surface of the ground freezes. Prior to planting, the bulbs should be stored in a cool, dry place with low humidity between 50ºF and 70ºF.
|