How to Harden Off Indoor Sown Plants

Tomato Plants

Preparing plants for planting outside is an important part of the growth process when plants have been sown indoors so that it is not a shock to the system. So how do you harden off indoor sown plants?

Hardening off involves acclimatising plants that have previously been sown inside.  If this process is not followed through correctly it can destroy the plants that you have so lovingly taken the time to grow and nurture.  The process of hardening off should take a week but may possibly take up to two.  It important to not harden off your plants too soon as it can weaken them, the timings to hardening off can be discovered in the video below.

However there are some top tips offered for the hardening off process:

  • Always grow a few extra plants in case of failure in timing, if you have too many you can pass them on
  • Never rush hardening off, your plants will benefit dramatically from the process
  • You must also harden off shop bought plants, as they will also need to be acclimatised to your garden and may have been grown in glasshouses and polytunnels meaning they are not so hardy as they might look.

These are just a few of the tips offered within this video. If you have any tips for the hardening off process yourself, please do share them and let us know!

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