Seed germination, sowing instructions for Tatarican Colewort. Crambe tartarica is easy to grow from seeds. Very hardy perenial, tolarates different conditions. Germination can be slow so it is best to sow the seed in pots. Germination usually takes place in 3 - 5 weeks at 15 degrees C. Prick out the seedlings into individual pots as soon as they are large enough to handle and plant out into their permanent positions.
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