
Light Needs

Mature Height

Mature Spread

Growing Zones
Modern gardens demand a modern plant. Excalibur Yucca is a new variation on the traditional Adam’s Needle Yucca. Excalibur is slightly smaller in size with a more uniform ball shape. The gorgeous, dense leaves are a deep blue-green and have curly white filament growths that help to give the overall look of the plant a lightness. Make no mistake, the leaves are spiny and maybe on the dangerous side. Maybe that’s why it's so attractive? It is also attractive to butterflies and to hummingbirds when in full bloom. The plant is very similar to an agave plant and actually in the same plant family.
Yucca filamentosa is the quintessential no maintenance plant. It needs no fertilizing. Prefers a very dry site that has good drainage year round. Especially in the colder ends of the hardiness zone. Anyone from zone 4-10 can enjoy growing this southeastern American native. The giant flowers bloom in the summer and are quite long lasting. The ideal situation for Excalibur is as a single specimen. With a little imagination and the right sight, 3 or 5 of theses yuccas planted together would be very dramatic. Excalibur Yucca lends itself to more modern garden spaces and is a good accent to ornamental grasses.
Adams Needle Yucca Care
Watering is only needed if the spring or summer is extremely hot and/or dry. The large fleshy leaves act as storage for most of the moisture this plant needs. Fertilizer is rarely needed for Yucca plants. The soil they prefer is on the lean side, in both fertility and texture. This plant honestly likes the rockiest and sandiest soil you can give it.
The best part of Yucca filamentosa is that there is no pruning or annual clean up required. The only maintenance is to remove the bloom stem after it has died back. Gardeners in the colder hardiness zones will need to make sure that the soil is very well drained and maybe mulch around the outside of the plant to insulate from the snow. Mulch needs to be kept out of the crown of this plant to prevent rotting during the cold months.
Adams Needle Yucca Spacing
Even Though this variety of Yucca is smaller, it still has a large spread of 3-4 feet. When planting with other plants in a garden bed give all plants a space of 3-4 feet. If other perennials are placed too close to Yucca, you will have to be very careful cutting them back. Leaving enough room to maneuver around the spiny leaves is very important.
Adams Needle Yucca Information
USDA Hardiness Zones: 4 - 10 |
Plant Type: Succulents |
Light Exposure: Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight) |
Mature Height: 2 Feet |
Mature Spread: 3 - 4 Feet |
Spacing: 3 - 4 Feet |
Habit: Upright |
Flower Color(s): White |
Flower Description: |
Bloom Period: Early To Midsummer |
Foliage Type: Evergreen |
Foliage Color(s): Blue, Green |
Foliage Description: Bluish Tint |
Seasonal Interest: Summer Flowering |
Watering: Average |
Resists: Deer, Rabbit |
Tolerates: Drought |
Attracts: Butterflies, Hummingbirds |
Container Role: |
Uses: Borders, Specimen or Focal Point, Wildlife Gardens |
Features: Attracts Pollinators, Low Maintenance, Native to North America, Continuous Blooming or Rebloomer |
Brand: |
Common Name: Adams Needle Yucca |
Other Name(s): |
Scientific Name: YUCCA FILAMENTOSA `EXCALIBUR` |
- SKU:
- 1231007928-pc
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.

Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts

Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts

Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts

Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons

Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons

Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
All bushes, perennials & trees come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.

Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.