Jerusalem-artichoke

Jerusalem-artichoke Helianthus Tuberosus

What is the plant

The Jerusalem artichoke (Helianthus tuberosus L.) is an erect, rhizomatous perennial herb, up to 3-4 m high. Though perennial, it is mainly grown as an annual. It is a highly variable plant: many characteristics, including size (2 to 4 m), tuber colour (green or violet), stem number and the number of branches per stem depend on genetics and environmental conditions. The stems are generally hairy and branch in their lower part. The root system is fibrous and develops cord-like rhizomes that can reach more than 1 m in length. The apical part of the rhizome is swollen and forms a fleshy tuber. The leaves are opposite or alternate, ovate to lanceolate, toothed, pubescent on the lower surface and 3-20 cm long x 5-8 cm broad. The inflorescence is a pseudanthium borne alone or in groups at the end of the stem or on terminal axillary branches. The flower head is 5-11 cm in diameter (much smaller than that of the sunflower) and bears many small yellow tubular fertile flowers surrounded by yellow ray sterile flowers, the ligules of which are thought of as petals. The fruit is a hairy achene containing a mottled black or brown seed, 5 mm long x 2 mm wide

It can be invasive in the Mediterranean region.

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Lighting

Full Sun

Hardiness zone

max 9b

Difficulty

Easy

Invasive

Weed

Water
Artichokes love water. they need it to produce tender buds. as a thistle, the perennial power of an artichoke plant lies in its deep roots. to encourage strong roots, use gilmour's thumb control swivel nozzle to water deeply between 1 to 3 times a week, depending on the weather.
Sunlight
Light is an essential factor in maintaining plants. The rate of growth and length of time a plant remains active is dependent on the amount of light it receives. Light energy is used in photosynthesis, the plant's most basic metabolic process.
Fertilizer
Liquid fertilizers are applied more frequently, bi-weekly or monthly, for example. Granular products are used less frequently, perhaps once every month or two. Slow-release houseplant fertilizers break down slowly and release their nutrients in small amounts, over a longer period of time. A single application of most of these products lasts for three to four months.

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Soil
Loamy soil, a relatively even mix of sand, silt and clay, feels fine-textured and slightly damp. It has ideal characteristics for gardening, lawns and shrubs. Loamy soil has great structure, adequate drainage, is moisture retaining, full of nutrients, easily cultivated and it warms up quickly in spring, but doesn't dry out quickly in summer.
Pruning
Houseplants should typically be pruned at the beginning of the growing season, which is late winter or early spring for many varieties.
Temperature
an average annual temperature of 6.3 to 26.6°C

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Container
Pot should provide ample drainage and room for growth.
Popularity
744 people already have this plant 260 people have added this plant to their wishlists