Harden

(redirected from harden off)
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Harden

1. To secure a computer system to make it more likely to withstand an attack from a hacker.

2. See: Hard asset.
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References in periodicals archive ?
Harden off autumn-sown cauliflowers being overwintered in frames, so they will be ready for planting out in March.
Harden off hanging baskets and window boxes ready to put into position outdoors when all danger of frost is over.
But if you can't wait, allow them time to harden off, then plant them out, protected by a layer of fleece at night.
And don't believe for a moment global warming means there is no need to harden off young vegetables and annuals before planting out.
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.
Take cuttings from summer-flowering clematis n Plant dormant dahlia tubers and young plants n Harden off hanging baskets and windowboxes ready to put in position outdoors when all danger of frost has passed n Begin feeding plants in containers and continue throughout the summer Renovate lawns by applying moss killer and then rake out the dead moss and accumulated debris n Pinch out the tips of all side shoots growing from main rod framework of outdoor grapevines n Thin gooseberry fruits, using the crop for cooking
In mild areas,begin to harden off young plants and overwintered cuttings.