February 1, 2023
Polygala Dalmaisiana

Polygala dalmaisiana or also known as Sweet Pea Shrub, Polygala myrtifolia ‘grandiflora’, or Polygala myrtifolia var. grandiflora, Milkwort. It is from the Polygalaceae family of plants. It is a hybrid that was cultivated from two South African species, P. opposistifolia, and P. myrtifolia. A French gardener, Dalmais raised it from seed. It is a bushy evergreen shrub that can grow to 1.5m or 5ft. It has dark green, dull, ovate leaves. The flowers are purple and pea-like. It usually flowers in summer into autumn.

How to grow Polygala dalmaisiana:

Grow it in the sun or partial shade. Polygala dalmaisiana thrives in well-drained soil. It flowers in summer and fall and has magenta-colored flowers. It is an evergreen bush. If you live in a colder climate then you can grow it indoors or in a greenhouse. It requires a minimum temperature of -5ºC or 41ºF. Water Polygala dalmaisiana well in the growing season and use a balanced fertilizer to promote growth and flowers. Propagate from seed or softwood or semi-ripe cutting in the summer. Polygala dalmaisiana is disease-free, but watch out for whitefly and aphids.

Polygala Dalmaisiana
Polygala dalmaisiana
Polygala Dalmaisiana
Polygala dalmaisiana

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