Polygala myrtifolia aka Myrtle Leaf Milkwort

Taxonomy

Polygala myrtifolia, also known as the myrtle-leaf milkwort or sweet pea shrub, is an evergreen shrub or small tree native to South Africa. It can reach a height of 2-4m and is commonly found along the southern and south-eastern coasts. This fast-growing plant is often seen in various habitats such as dunes, rocky areas, forest margins, streamsides, and grasslands. With its oval-shaped leaves, which can be either thin and needle-like or mucronate, it belongs to the milkwort family. The attractive flowers of Polygala myrtifolia resemble sweet peas, ranging in color from mauve to pink, crimson, or white. These flowers close at night and boast a unique brush-like tuft protruding from the keel. The plant utilizes an intricate piston mechanism for pollination. Its fruit is an oval, brown capsule with narrow wings. Due to its appeal, this species is frequently cultivated in South African gardens. Another related plant, Polygala × dalmaisiana or sweet pea shrub, is a compact, evergreen shrub that also bears clusters of purplish-pink flowers resembling sweet peas. It blooms abundantly from mid-spring to summer and has mid-green leaves. This hybrid species is known for its lovely gray foliage, which creates interesting contrasts when planted alongside other green-leaved plants. It is commonly used in mixed borders, as an accent shrub, or as a low, informal hedge. The cut blooms of this shrub are visually striking and last well in flower arrangements, although they lack a strong fragrance. While it is not a long-lasting plant, it thrives in temperatures down to the low 20s and can adapt to various well-drained soil types. It can be mistaken for Polygala fruticosa, the dwarf sweet pea shrub.

Common names

Myrtle Leaf Milkwort, Butterfly Bush, Parrotbush

How to care for Myrtle Leaf Milkwort

Difficulty

Myrtle Leaf Milkwort requires a bit more attention and knowledge to thrive, making it a suitable plant for those with some gardening experience.

Water

Myrtle Leaf Milkwort should be watered regularly, allowing the soil to dry out between waterings.

Soil

Myrtle Leaf Milkwort loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

Lighting

Myrtle Leaf Milkwort requires abundant, bright and direct light. Placing it less than one foot from a window is the best way to make sure the plant receives enough light to survive and thrive. Depending on your region, however, the current weather can affect the placement of the plant in your home. For example, in some areas the sun may be too direct and intense, so it's best to place it farther away from the window. You may also need to adjust your placement according to the season as the sunlight can change intensity over the course of the year. If you live in a region with significant temperature fluctuations, such as a desert, you may need to place the plant a bit farther away from the window to avoid extreme heat or cold. With some care and attention, your Myrtle Leaf Milkwort will be sure to bring you many years of beauty and enjoyment.

Dormancy

During the cold period, it is common for Myrtle Leaf Milkwort to go dormant and their growth may slow down, so waterings should be spaced out more during this period.

Toxicity

Ploi's records do not contain confirmed information on the toxicity of this particular plant. In the event of accidental ingestion of plant material with questionable toxicity by you, a family member, or a pet, it is always a good idea to consult a healthcare professional.


More info:
Wikipedia