Gardening

The Rule of Three

20170918A.jpg
Plant bulbs at at depth 3 times their height and space them at 3 times their diameter.

The basic rule for planting bulbs is to plant them at a depth equal to three times the height of the bulb and to space them at three times their diameter. In very cold climates (zone 3 or less), it may be helpful to bury hardy bulbs deeper than normal, up to a depth equal to five times the height of the bulb. That way the bulb will be better protected against the cold.

20170918B fiercebloom.com.jpg
Tulips perenniallze best when planted 1 foot (30 cm) deep. Photo: fiercebloom.com

It is also worthwhile making am exception for hybrid tulips, like Triumphs, Parrots, and Darwin Hybrids. You’ll find that they will be more more perennial and better protected from squirrels if you plant 1 foot (30 cm) deep. That’s about twice the usual recommendation.

Even so, only plant tulip bulbs extra deep when you can offer them loose, well-drained soils. In heavy clay soil, which the tulip’s spring shoot  has more difficulty piercing, it is better to stick to the original rule of three!011.K

Garden writer and blogger, author of more than 60 gardening books, the laidback gardener, Larry Hodgson, lives and gardens in Quebec City, Canada. The Laidback Gardener blog offers more than 2,500 articles to passionate home gardeners, always with the goal of demystifying gardening and making it easier for even novice gardeners. If you have a gardening question, enter it in Search: the answer is probably already there!

0 comments on “The Rule of Three

Leave a Reply

Sign up for the Laidback Gardener blog and receive articles in your inbox every morning!

%d bloggers like this: