BULB FORCING RESOURCES

Our 2023 Tulip and Narcissus COOLING weeks info is here!

When we started our bulb division, we were determined to make bulb forcing simpler for wholesale customers. We want you to be successful!

You can download our cooling weeks lists for all the varieties we offered (and received subs for) below.

For untreated bulbs, we supply the total number of recommended cooling weeks you should give each variety. Your untreated tulips will arrive here with 2 weeks of 9C cooling from their overseas shipment. You can deduct that time if you like.

Your 5C preparation bulbs are listed with a date (second tab on the spreadsheet). This is the earliest date from which we recommend your bulbs enter the growing phase.

Keep in mind - all tulips must root well for 2-3 weeks and show some tip growth before you grow them. Note the reminders at the top of each page on the charts linked below.

If you are not well prepared with an understanding of bulb forcing, we recommend the program at The Tulip Workshop, our sister company, as a thorough course in both soil forcing and hydroponic growing with support along the way.

DOWNLOAD THE COOLING WEEKS CHARTS: