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Given Lewisia’s incredible beauty and how easy it is to grow, it’s surprising that these plants are more widely used. In containers, where moisture conditions can be managed, they are well suited to much of the U.S. Our plants come from a local Southern California grower, not a large supplier. Stock is limited.
Lewisia plants aren’t generally fussy but they are downright unforgiving when it comes to drainage. Dry winter soil conditions are needed to avoid rotting the plants’ taproots. Ideal light conditions vary; plant in full sun in parts of the country with largely overcast weather (Seattle) and in part shade in regions with lots of full sun days (Denver).
Lewisia thrives in soil that is moderately fertile and very well drained. For containers, use a mix with generous amounts of sharp sand or grit to guarantee good drainage.
Plant outdoors when frost danger has past. Lewisia plants are hardy perennials and can take freezing without ill effects, once they are established.
Dig a hole a bit larger than the potted rootball of your plant. Situate the plant so that the soil in the pot is level with the garden soil. Tease out the roots gently and fan out in the soil. Refill around plant with soil, tap down to eliminate any big air pockets and water well to settle the soil around the roots. Keep soil lightly moist for the first few weeks while your plants are establishing.
In the garden, space your plants so they have enough room to grow without crowding. Allow about 10-12” between plants. When grown in containers, plants can be spaced at 8-10” apart.
Lewisia will provide a number of flushes of blooms through the growing season if the soil is kept moderately moist. Once cold weather arrives and the plants become dormant, little to any water is needed. Wet winter conditions will kill Lewisia plants.
Light: Sun to partial shade depending on region
Soil: Moderately fertile and very well drained
Water: Average moisture during growing season; dry in winter
Uses: Rock gardens, crevices and containers
Tip: Great drainage is key for happy Lewisia plants
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