OPINION: The Pretty Portulaca
In some parts of the world Portulaca is aptly named the Time flower because the flower opens and closes at specific times of the day. You can set your clock to it!
Portulaca is native to the hot, dry plains of northern Argentina, Uruguay and southern Brazil. It has now been naturalised in other parts of the world. Portulacas are one of very few annual succulents.
The best uses for this plant are in a rockery, between stepping stones as groundcover or in a hanging basket. The trailing habit of this plant makes for an ideal companion in containers as it will spill over the edges and add dimension and depth to the overall appearance.
The flowers mature at around 15cm in height and 30-40cm in width, variety dependent. The reddish-coloured stems are prostate or slightly ascending. The green cylindrical leaves are arranged in clusters around the stem. They are pointed at the ends. Both the stems and leaves are thick, fleshy and juicy.
The flowers are formed at the tips of the stems. They are rose-like in appearance and have either single, semi-double or double petals. The flower size ranges from 3-5cm in diameter. The colours tend to be bright such as scarlet, orange, yellow, pink and white. For the most part, the flowers are pure coloured, however there are some that have stripes or spots on their petals. Light intensity is very important and Portulaca flowers will not open on cloudy or rainy days.
Portulacas do not require a particularly nutrient-rich soil. They grow easily in sandy soils with little water and almost no attention. The only important requirement for this hardy little plant is full sun. They will not perform well in shade or waterlogged soil. They do not like too much water and due to the delicate nature of their petals.
Not may pests are attracted to Portulaca, but you may find aphids and nematodes can cause damage if left unchecked. Companion plant Portulacas with Marigolds, as they enjoy similar planting conditions and repel nematodes and unsavoury visitors.
DID YOU KNOW: Bees are crazy for Portulaca flowers. However, an hour after pollination the flower dies.
Content provided by the Bed Plant Growers Association.
