Rock Purslane Care: How To Grow Rock Purslane Plants In The Garden

Rock Purslane Care: How To Grow Rock Purslane Plants In The Garden

By: Mary H. Dyer, Credentialed Garden Writer

What is rock purslane? Native to Chile, rock purslane (Calandrinia spectabilis) is a frost-tender perennial that, in mild climates, produces masses of bright purple and pink, poppy-like blooms that attract bees and butterflies from spring until fall. The foliage is an attractive shade of bluish green.

Rock purslane plants are suitable for growing in USDA plant hardiness zones 8 and above. They can withstand temps as low as 25 degrees F. (-4 C.) and tolerate drought like a champ. In cooler climates, you can plant rock purslane as an annual. This versatile, spreading plant works well in rock gardens and is an ideal plant for xeriscaping. Rock purslane plants are also deer resistant. Read on for information on growing rock purslane.

Rock Purslane Care

Purchase rock purslane plants at a garden center or nursery.Alternatively, plant seeds directly in the garden after all possible danger offrost has passed in spring, or start them indoors eight weeks ahead of time.

Plant rock purslane in full sunlight. If your climate hashot summers, these plants will appreciate a little afternoon shade.

Rock purslane can grow in nearly any type of soil, but it must be well drained. Gritty or sandy soil is excellent. You can also plant rock purslane in containers filled with good quality potting mix. Mix in a little coarse sand to improve drainage.

Spread a thin layer of mulch around the plants after theground thaws in spring.

Rock purslane requires very little irrigation. Wateroccasionally, especially when weather is hot and dry.

Cut rock purslane plants down to about 6 inches (15 cm.) inlate fall.

Rock purslane is easy to propagate by planting small piecesof an established plant. This is a good way to replace old, overgrown plants.

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How to Grow and Care for Calandrinia

Calandrinia is a plant genus that contains many species of purslane, including the redmaids. The genus was named for Jean Louis Calandrini, an 18th-century Swiss botanist. It includes around 150 species of annual herbs which bear colorful flowers in shades of red to purple and white. Plants of this genus are native to Australia, Chile, and western North America.

Calandrinia are half hardy perennials and annuals. As the perennials have a short life span they are usually grown as half hardy annuals in the garden. They are low growing, reaching heights of about 6 to 18 inches (15 to 45 cm) and bloom with hundreds of bright pink and purple flowers from middle to late summer. Names for Calandrinia include Rock Purslane, Parakeelya and Redmaids. They are ideal, ground cover and edging plants, they can also be used in rockeries. Plants are able to grow in very hot conditions.

Growing Conditions and General Care

Calandrinia plants are very easy to care for as they can tolerate prolonged dry periods. They do not like to much water, especially in the winter. Plants are able to grow as a short lived perennial in warm regions but should be grown as annuals elsewhere. Propagate by taking cuttings or allow plants to self seed in situ.

If you plan to grow outdoors from seed then Calandrinia species should be sown at a depth of 0.1 inch (3 mm) after the last frost of spring. If you prefer to start off Calandrinia as seeds indoors then they should be started off about eight weeks before they are due to be put out.

They should be grown at a temperature of 55 to 59°F (13 to 15°C), and take from one to two weeks to germinate. The seedlings of Calandrinia should be planted out with a spacing of about 8 inches (20 cm) following the last possible frost of spring into an area that receives plenty of sun, and into a gritty or sandy soil.


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How do you care for rock purslane?

The Calandrinia should be sown at a depth of 0.1” inches in the soil if you plan to plant it outdoors. Plant it after the last frost of spring to avoid freezing of roots. If you plant the Calandrinia in part shade, it will take around 8 weeks for it to start off before you need to put them out in full sun.

Also, is rock purslane a succulent? Rock purslane, Calandrinia grandiflora, is an evergreen perennial with bright magenta flowers. The succulent leaves are blue green the flowers grow on 3-foot stalks. Rock purslane is also easy to propagate.

Also, how do you propagate purslane rocks?

Just poke a hole in the mix with a wood dowel or pencil and stick the end of a clipping in the hole. Push the potting mix up against the clipping and keep the soil again most but not wet. Once your purslane clippings have grown roots an inch or so long they can be planted in the ground or in pots.

Purslane is native to India and Persia and has spread throughout the world as an edible plant and as a weed. Many cultures embrace purslane as a food. Purslane has fleshy succulent leaves and stems with yellow flowers. Seeds of purslane have been known to stay viable for 40 years in the soil.

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