If you are in a climate that is too cold for a variety, don't be afraid to experiment with a small planting: apply a good 4" layer of mulch after the ground freezes. If you are in zone 8 or warmer, precool your bulbs for at least ten weeks prior to planting to promote good root development. Please contact us or a good, local horticulturist if you have any questions about your micro-climate (due to elevation or proximity to water) or about precooling your bulbs.

Range of Annual Minimum Temperatures

Zone 1Below -50ºF Zone 2-50º to -40ºF Zone 3-40º to -30ºF Zone 4-30º to -20ºF Zone 5-20º to -10ºF

Zone   6-10º to 0ºF Zone   70º to 10ºF Zone   810º to 20ºF Zone   920º to 30ºF Zone 1030º to 40ºF