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Erythronium californicum 'White Beauty'
Erythronium californicum 'White Beauty'
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"The one thing that may prevent you from growing Erythronium well is if your garden gets very hot and dry in summer – Erythroniums can survive quite long dry periods during the summer, provided they are in the ground, but it seems that they suffer if the ground around them heats up too much – this is part of the explanation why their bulbs grow so deeply into the ground. I have been asked how deep you should plant bulbs. There is no definitive answer it depends on your garden soil and weather because what the bulbs are seeking is not simply a definable depth of soil above them but the best environment, being a combination of moisture and temperature, they can tolerate."
Ian recommends planting them with 7cm of soil on top of the bulb, at least for all the western US coast species.
You really must check out Ian's bulb log number 2016.
Dr. Alexey Yakovlev, CC BY-SA 2.0 <https://creativecommons.org/licenses/by-sa/2.0>, via Wikimedia Commons
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