The Protea: An Exotic Icon on your Terrace
The Protea and its close relatives are flowering plants primarily found in the Southern Hemisphere. Species from South Africa (Fynbos) and Australia (Waratah) are the most well-known in cultivation and include, among others, Protea, Leucospermum, Leucadendron, Mimetes, Banksia, and Telopea.
Bring the wild beauty of South Africa to your own garden. With their spectacular, almost prehistoric flowers, the Proteaceae are an absolute eye-catcher. In our region, they shine best as an exclusive container plant. Since the Proteaceae only tolerate light frost (-3°C to -6°C), a pot offers the perfect flexibility to keep them safe and frost-free during the winter.
With us, you can buy Proteas that are already capable of blooming, so you don’t have to wait years for those first impressive flowers!
Naturally, these plants grow as small shrubs to small trees in generally very poor soil, under full sun. Since they originate from the Southern Hemisphere, their flowering period may differ from our typical summers. The main flowering period usually takes place between March and June. The flowers are not only beautiful on the plant, but also remain stunning for weeks as cut flowers (or dried).
Position:
Give your Protea the warmest and sunniest spot you have. It loves an open location with plenty of air circulation; this helps to prevent fungal diseases. In winter, it prefers to move to a bright, cool, but frost-free space (such as a conservatory or an unheated room).
Soil Type:
Although there are differences in what each species within the family prefers, the general rule is that they require very well-drained, acidic soil (pH 5.1 – 6.6). A mixture of potting soil with plenty of sand, gravel, or a specific cactus mix, or a blend of unfertilized heather soil with sand and stones (or perlite), is ideal. Avoid rich compost or heavy clay. The plant’s root system is designed to extract all available phosphorus from the soil. However, if there is too much in the soil, the plant will poison itself.
Watering:
During the growing season, Proteas consume a lot of water. The water should ideally be acidic or neutral. Avoid lime-scale or hard water at all costs, as this will increase the pH and prevent the plant from absorbing sufficient nutrients. Despite their high water requirements, they absolutely do not like “wet feet” or standing water. The potting soil must be well-draining to allow enough oxygen to reach the roots. Root rot is a significant risk for these plants. In the resting period, the plants require moderate to light watering.
Fertilizing:
Although Proteas require very few nutrients, a light fertilizer based on nitrogen and potassium can be applied 1 or 2 times a year if there is a clear nutritional deficiency. Less is more! Proteas are extremely sensitive to phosphorus; an excess can even kill the plant. Only use fertilizers specifically developed for Proteaceae or acid-loving plants, and apply them very sparingly. You can find the phosphorus-free fertilizer on this page.
Pruning:
The only pruning required is the removal of old flower buds. Since these grow at the ends of the stems, the dormant buds below will sprout and create new branches. Prune your Protea after flowering. Cut back the spent stems to, for example, about 10 cm from the base. This stimulates bushy growth and ensures an even fuller plant for the following year. Note: the dormant buds die off once the stem becomes woody. Pruning into the woody part will cause that branch to die; therefore, always leave some healthy leaves on the branch.