harden

(redirected from harden off)
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harden

a rough fabric made from hards
References in periodicals archive ?
Begin to harden off bedding plants, checking weather forecast and protecting plants if frost is forecast.
When the first two leaves are welldeveloped, gradually harden off before planting out - but don't do it too soon as they are frost-tender.
n Continue to harden off hanging baskets and other annuals in containers ready to put outdoors when all danger of frost is past
Harden off autumns own cauliflowers as conditions allow to be ready for planting out next month.
HARDEN off young plants, such as leeks, calabrese, cauliflower, pansies and penstemons, which have been in frames.
If you are sowing indoors, harden off seedlings before planting in a greenhouse border or polytunnel in late spring, or outside in a sunny, sheltered spot from midsummer.
Harden off autumn-sown cauliflowers being over-wintered in frames so they will be ready for planting out in March.