Sidalcea Candida


15 in stock

SKU: sidalcea-candida Category:
Common Name: Prairie Mallow
Size: 2-3 litre
Hardiness: H7
Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees ˚C) are shown in brackets

  • H1a: under glass all year (>15˚C)
  • H1b: can be grown outside in the summer (10 - 15 ˚C)
  • H1c: can be grown outside in the summer (5 - 10 ˚C)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5 ˚C)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1 ˚C)
  • H4: hardy through most of the UK (-10 to -5 ˚C)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10 ˚C)
  • H6: hardy in all of UK and northern Europe (-20 to -15 ˚C)
  • H7: hardy in the severest European continental climates (< -20 ˚C)
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2-3 Litre Pot

  • Position: Full sun, partial shade
  • Soil: Well drained
  • Growth Rate: Average
  • Flowering Period: July-September
  • Hardiness: H7
  • Eventual Height: 0.5 – 1m
  • Eventual Spread: 0.1 – 0.5m

Sidalcea Candida, also known as ‘Prairie Mallow’, is a clump forming erect, herbaceous perennial that belongs to the Malvaceae family. It is native to western North America and can be found in prairies, meadows, and along stream banks.  The plant can grow up to 1 metre tall, and it has a slender stem that is covered with fine hairs. The leaves are basal, and are deeply lobed with serrated edges. The leaves are typically green but can turn a reddish colour in the Autumn.

The flowers are the most distinctive feature of the plant. They are a pure white colour and have five petals that form a saucer shape. The flowers appear in Summer and are held on long, thin stems that rise above the foliage. The blooms are highly attractive to bees, butterflies, and other pollinators.

This is a hardy plant that can grow in a wide range of conditions. It prefers full sun to partial shade and well-drained soil that is rich in organic matter. The plant is also drought-tolerant and can withstand moderate drought conditions.

Overall, this is an attractive and low-maintenance plant that adds interest to any garden or landscape. Its pure white blooms are a welcome sight in the Summer and attract pollinators to the garden.

How to care for your Sidalcea Candida

  • Soil: Prefers well-drained soil that is rich in organic matter. It can tolerate some clay in the soil, but it doesn’t like to be waterlogged. If your soil is heavy or poorly drained, add some organic matter like compost, peat moss, or well-rotted manure to improve soil structure and drainage.
  • Light: This plant thrives in full sun to partial shade. It can tolerate some shade, especially in hot climates, but it will produce fewer flowers.
  • Water: Water regularly, especially during hot, dry weather. However, avoid overwatering or letting the soil become waterlogged, as this can cause root rot. Water deeply once a week, or more often if needed, and make sure the soil has good drainage.
  • Fertiliser: Doesn’t need a lot of fertiliser, but you can give it a boost in the Spring with a balanced, slow-release fertiliser. Avoid using high-nitrogen fertilisers, as they can encourage too much leafy growth at the expense of flowers.
  • Pruning: After the first flush of flowers, you can cut back the stems to promote more branching and flowering. This will also help to keep the plant tidy and prevent it from becoming too leggy.
  • Mulching: Mulching can help to conserve moisture, suppress weeds, and regulate soil temperature. Apply a layer of organic mulch like shredded bark, straw, or leaves around the base of the plant, but be careful not to cover the crown or stems.

By following these simple care tips, you can enjoy the beauty of Sidalcea Candida in your garden for years to come.

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