Asparagus setaceus or Common asparagus fern

Care of the climbing plant Asparagus setaceus or Common asparagus fern

The genus Asparagus, family Asparagaceae, comprises 400 species of herbaceous plants and climbing subshrubs native to Africa, Asia, the Mediterranean region, and Macaronesia. Some species are: Asparagus setaceus, Asparagus falcatus, Asparagus officinalis, Asparagus virgatus, Asparagus densiflorus, Asparagus asparagoides.

Common names: Common asparagus fern, Asparagus grass, Climbing asparagus, Ferny asparagus, Lace fern. This species is native to South Africa and Mozambique.

They are climbing plants that reach more than 3 meters (9.84 feet) in height but the much smaller 'Nanus' variety is usually grown. Feathery leaves are actually modified stems called cladodes. The true leaves are tiny and look like scales. The flowers have no ornamental interest but their red fruits do.

They are used as houseplants in hanging pots. They are also interesting as climbing plants in semi-shady undergrowths or on terraces and north-facing walls in frost-free areas. They are also used for floral decorations.

Asparagus setaceus needs an illuminated exposure but avoiding the direct sun in the hottest hours of the day. In winter the temperature should not be less than 7 ºC (44.6 ºF). They don't like the excessive heat of heating or the Mediterranean summer.

As a soil, a mixture of 1/3 organic mulch, 1/3 coarse siliceous sand and 1/3 blond peat is recommended. They are transplanted in spring if the roots appear below the pot; You have to do it carefully because its roots may be attached to the container.

Water frequently in summer and spring but without watering. The rest of the year the waterings will be spaced without letting the substrate dry completely. Place a plate with moistened pebbles under the pot to increase the humidity. If it's very hot, it is advisable to spray them with lime-free water every 2 days.

Fertilize every 15 days during the summer with mineral fertilizer for houseplants diluted to half the usual dose.

They can be pruned at any time to control their growth.

They are attacked by mites or mealybugs if the humidity is low or they suffer from drought and poor ventilation.

They propagate easily by division in spring or from seeds sown in autumn or spring.