Yucca filamentosa is a species of flowering plant native to the southeastern United States, reportedly naturalized in France, Italy and Turkey and most commonly found in sandy soils, especially in beach scrub and dunes, but also in fields, barrens, and rocky slopes, though it grows well also in silt or clay soils. It is widely cultivated in mild temperate and subtropical climates as a broadleaved evergreen plant, needing full sun and a well-drained, preferably acid or slightly alkaline soil.
Usually trunkless, it is a multisuckering evergreen shrub with heads of 75 cm (30 in) long, filamentous, blue-green, strappy leaves. It is fully hardy, though in cultivation it benefits from a sheltered position away from winter winds. Y. filamentosa is readily distinguished from other yucca species by white, thready filaments along the leaf margins. Flower stems up to 3 m (10 ft) tall bear masses of pendulous cream flowers in early summer.
Sowing & planting
80 - 200
Identify my adam's needle
Yucca is a genus of 40-50 species of perennials remarkable for their hard-leaf rosettes, sword-shaped, and clusters of white or white-tinged flowers. Yucca filamentosa is a shrubby plant characterized by its leaves with long filaments.
Plant my adam's needle
This yucca resists up to -15 ° C, so you can plant it in the open soil, in a well-drained soil in full sun, sheltered from dry winds.
Desert plant, loving hot and dry environments, the Yucca fits pretty well inside our homes and apartments. It will grow well at a temperature of 18-22 ° and needs light.
Be careful however: avoid placing it directly behind a window to the south, the direct exposure could overdry it. Therefore prefer the proximity of a window facing west.
Water my adam's needle
Yucca doesn't like moisture, but it still has it's own need of water. As soon as the soil is dry to a depth of one or two centimeters, water your yucca, ensuring you moisten all of the topsoil.
During growth seasons (spring, summer), watering should be regular, about once or twice a week, but controlled, to make sure the roots don't drown. In autumn, gradually reduce watering until winter, when once-monthly watering will suffice.
Spray my adam's needle
In dry weather, spray your plant with soft water, clean the dust on the leaves: it will be all the more beautiful and you will protect it from red spiders - its main enemy!
Prune my adam's needle
Let the yellowened lower leaves dry by themselves before tearing them of: they are quite normal in the cycle of life of the yucca, which renews its foliage.
Light pruning can also be done in the spring, from February to May, by removing leafy branches starting from the trunks.
Keep 3 to 5 leaves on each branch, otherwise it will have difficulty to grow back.
If a branch has become too big and you do not want it to grow back, then cut it at its base, one centimeter above the fork.
Fertilize my adam's needle
In summer, add liquid fertilizer for green plants every 2 weeks. We recommend a good quality liquid compost "tea", diluted to 1/10th strength. If you like chemistry, a slow release fertilizer is possible... Stop all fertilizer treatments at the end of summer.
Repot my adam's needle
Every 3 or 4 years, at the end of winter, transplant your yucca carefully to a slightly larger pot than it's current, adding a mixture of sand, topsoil and garden soil.
Propagate my adam's needle
Yucca can be easily propagated by removing a stem end. Cut one or several pieces between 15-20cm in length, long enough that there are likely one or two dormant buds contained inside.
Plant them in a mixture of sand and fibrous soil that you will place in a warm, relatively moist, shaded location.
Roots will develop in one or two months, and soon after, a new leaf rosette will flower towards the top of the cutting, from a bud that used to be practically invisible.
Check on my adam's needle
Keep a close eye on the leaves: if they are deformed it is either a lack of light or an excess of water. Try both: find a brighter location and reduce watering.
Protect my adam's needle
Do not hesitate to take out your yucca for the summer!
Just avoid placing it directly in direct sunlight - acclimate it gently, and of course, increase the watering!
You should bring it inside at the end of the summer.