Adams needle (Yucca filamentosa) Profile

Written by Iris

Aug 24 2021

Adams needle (Yucca filamentosa) Profile
Adams needle (Yucca filamentosa) is an important building plant in garden design. Adams needle (Yucca filamentosa) will grow in areas where irrigation is not convenient and many other types of plants are difficult to grow. New Adams needle (Yucca filamentosa) plants will sprout around the base of the yucca, eventually forming an attractive cluster. Each year Adams needle (Yucca filamentosa) shed their lower leaves and slowly grow a trunk.

Adams needle (Yucca filamentosa) Picture

 Adams needle
Yucca Plant - Most Common House Plant

Adams needle (Yucca filamentosa) Info

Botanical Name Yucca filamentosa
Common Names Adam's needle, needle palm
Plant Type Broadleaf evergreen shrub
Mature Size 4 to 8 feet tall, 2- to 3-foot spread
Sun Exposure Full sun
Soil Type Dry to medium-moisture, well-drained soil 
Soil pH 5.5 to 7.5 (acidic to slightly alkaline)
Bloom Time June to July

Ecological Habits of Adams needle (Yucca filamentosa)

Adams needle (Yucca filamentosa) will grow to be about 30 inches tall at maturity extending to 5 feet tall with the flowers, with a spread of 3 feet. Adams needle (Yucca filamentosa) tends to fill out right to the ground and therefore doesn't necessarily require facer plants in front. Adams needle (Yucca filamentosa) grows at a medium rate, and under ideal conditions can be expected to live for approximately 20 years.
Adams needle (Yucca filamentosa) should only be grown in full sunlight. Adams needle (Yucca filamentosa) prefers dry to average moisture levels with very well-drained soil, and will often die in standing water. Adams needle (Yucca filamentosa) is considered to be drought-tolerant, and thus makes an ideal choice for a low-water garden or xeriscape application. Adams needle (Yucca filamentosa) is not particular as to soil type or pH. Adams needle (Yucca filamentosa) is somewhat tolerant of urban pollution.
Adams needle

Adams needle (Yucca filamentosa) Distribution Area

The Adam’s Needle is a plant native to the Long Island and PA and s. to FL and LA. This is why the Yucca Filamentosa is used to growing in specific regions such as the states in Southeast, Northeast, and the Southwest of the United States.
You might be wondering why your Adam’s Needle’s native region is important. Well, if you know where your Adams needle plant originally came from, you’ll know which environment conditions it prefers, and with it, knowledge on how to replicate it at home.
With this in mind, the Yucca Filamentosa will be most used to the heat zones in the 5 – 11 region, as the plants hardiness falls between 4a, 4b, 5a, 5b, 6b, 6a, 7a, 7b, 8a, 8b, 9a, 9b, 10b, 10a and the ideal climate zone is between 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24.
Adams needle

How to Grow and Care for Adams needle (Yucca filamentosa)

How to Grow Adams needle (Yucca filamentosa)

  • With Seeds
Sowing seeds does not work reliably in some latitudes. To successfully pollinate the bell-shaped flowers, a special type of moth is required, which is only available in North America. This problem could be solved by manual pollination by humans. However, there are other, more successful methods of propagating the plant.
  • With Stem Cuttings
When your yucca has reached its mature size, you'll likely start finding baby plants (or offsets) beginning to grow. You can propagate your plant to create new growth by separating offsets or cutting stems, which both require a similar method. It's best to take stem cuttings in the spring when the plant is actively growing, but offsets can be propagated year-round.
Step 1: Identify the yucca offset or healthy stem on the mother plant that you'd like to propagate. If it's possible to wait until the offset has roots, it'll establish more quickly (but any offset with at least a quarter-inch of stem will grow into a new plant).
Step 2: Cut off the offset, including any roots, or cut a portion of stem that's at least three inches long. Remove the bottom few inches of leaves from the stem cutting.
Step 3: Place both offsets or stem cuttings in a shady, dry place for a few days. This will allow the cut sections to callus as they grow stronger before planting.
Step 4: Fill the pot with potting mix. Plant offsets or cuttings in the soil, ensuring at least part of the stems are submerged in the fresh mix.
  • With Offsets
Adam's Needle propagates from offsets. To be able to propagate from the mother plant, you might wait several years for the main plant to produce an offset. To start this process, use a sharp knife and remove an offset from the main plant. When you remove the offset, clean the extra soil from it. Before replanting, wait for a few days to allow it to callous. Use well-draining soil for your new succulent plant. Don’t forget to water when the soil dries out.
Adams needle

How to Care for Adams needle (Yucca filamentosa)

  • Light
This plant grows best in full sun but will tolerate a little shade.
  • Soil
With the substrate for the Adam’s needle, less is more. The plant prefers barren soils that are well-drained and dry. A loamy clay soil based on humus, mixed with plenty of sand and gravel, is a suitable combination. Stony and chalky corners in the garden anyway, where barely anything wants to thrive, are also ideal for the Yucca Filamentosa.
The following are important:
  • Water
Since they're native to the desert, yuccas are very tolerant of drought-like conditions. These easy-to-grow plants can withstand mild neglect, even in a dry climate. They're great houseplants if you travel often, but, like most plants, yuccas thrive with more care.
  • Temperature and Humidity
Although native to the southeastern U.S., this hardy succulent has naturalized farther north. You can plant Yucca filamentosa in USDA hardiness zones 5 to 10, where it readily adapts to all climate variations within those zones. This plant usually readily survives temperatures down to 5 degrees Fahrenheit, but it will survive temps of -10 to -20 degrees Fahrenheit if covered with mulch over winter.
  • Fertilizer
Common yucca is one of the light feeding plants. These plants need a minimum of nutrients and should never be over-fertilized.
  • Pruning
To improve the appearance of the type of yucca known as Adam's Needle (Yucca filamentosa), mechanically remove the brown fronds each year. Clear debris from around your yucca. You will need a clean work area and a clear view of the trunk. It is also important to see where the young plants are emerging. Do not damage the new plants while pruning the parent.
Adams needle

Uses of Adams needle (Yucca filamentosa)

Landscape Uses
The Adams needle is an impressive specimen plant that fits wonderfully in prairie gardens and gravel beds. They can also be cultivated in vessels. The flowers are popular with bees and butterflies. As a planting partner there are for example pearly everlasting (Anaphalis triplinervis'summer rain'), elephant's ears (Bergenia), baby's breath (Gypsophila), lavender, stonecrop (Sedum) or lamb's ear (Stachys byzantina).

Varieties of Adams needle (Yucca filamentosa)

There are many other types of yucca plants besides Yucca filamentosa, including:
Yucca elata (soap-tree yucca): This tree can reach 15 feet tall. It can be grown in zones 5 to 8
Yucca glauca (soapweed): Not to be confused with soap-tree yucca, this plant is suitable for zones 3 to 10.
Yucca flaccid: This yucca's leaves stand fairly limp while most other yucca plants have rigid leaves; it grows in zones 4 to 10.
Yucca brevifolia: Also known as the Joshua tree of the American Southwest, it is another type of tree-form yucca suitable for zones 6 to 8.
Adams needle

Adams needle (Yucca filamentosa) Common Pests/Diseases

Too much moisture can cause rust fungus in this Yucca plant. This usually occurs during winter. Prevent this by protecting the plants from heavy winter moisture.
Yucca Filamentosa also needs insecticide regularly to keep slugs and snails at bay as these can damage the plant.
Adams Needle is also prone to mites. This is characterized by speckling on the leaves or the appearance of gray webs.
This can be prevented with miticides, pruning, and soaping with special insecticidal soap.
Fungal diseases can occur in the form of spotted leaves with reddish-orange marks. These should be removed as soon as possible to prevent the disease from spreading to other leaves.
Adams needle

Adams needle (Yucca filamentosa) Design Tips

Adams needle (Yucca filamentosa) makes a fine choice for the outdoor landscape, but it is also well-suited for use in outdoor pots and containers. Because of its height, Adams needle (Yucca filamentosa) is often used as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Adams needle (Yucca filamentosa) is even sizeable enough that it can be grown alone in a suitable container. Note that when grown in a container, Adams needle (Yucca filamentosa) may not perform exactly as indicated on the tag - this is to be expected. Also note that when growing plants in outdoor containers and baskets, Adams needle (Yucca filamentosa) may require more frequent waterings than they would in the yard or garden.

Adams needle (Yucca filamentosa) Companion Plants

Adams Needles do well with some other plants beside it. One good companion plant is the Cistus x ‘Brilliancy’, which will pair up nicely with your leafy friend. A nice Rosmarinus officinalis will work well too, so choose whichever you find works best for you.