If you are looking for exotic blooms and foliage for your garden then Canna lilies are amongst the easiest to grow and the hardiest. While the native to the tropical and subtropical regions of the New World, most shop-bought, selected cultivars have been developed in temperate climates. So hardy are these cultivated varieties that they can be left in the ground to overwinter in the milder regions of southern England.
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You can collect your own Canna lily seeds at the end of the autumn. When the seed pods become dry they open up to reveal black seeds inside which can be easily squeeze out. Healthy Canna lily seeds are a dark, brownish-black color, and are round or slightly oval shaped. Any seeds that are cracked, misshapen or not the right color can be discarded.
The seed coats are hard to to break dormancy will need to be soaked for a few days before planting. To improve water take up consider nicking the the seed with a sharp, sterilized blade or file down the seed coat until the whiteness of the endosperm becomes visible.
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Once the root systems have established in their pots or modules they can be potted on into larger pots, Keep the compost moist but not waterlogged.
Once the threat of late frosts have passed they can be harden off over a week or so before planting out into their final position. Canna lilies will perform best in a sunny, sheltered position in a moist well-drained soil.
For related articles click onto the following links:
HOW TO GROW CANNA LILIES FROM SEED
HOW TO GROW LILY CONCA D'OR