Height: 24-36 in. (60-90 cm) 36-48 in. (90-120 cm) 4-6 ft. (1.2-1.8 m)
Spacing: 24-36 in. (60-90 cm) 36-48 in. (90-120 cm)
Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F) USDA Zone 10a: to -1.1 °C (30 °F) USDA Zone 10b: to 1.7 °C (35 °F)
Sun Exposure: Sun to Partial Shade
Danger: Plant has spines or sharp edges; use extreme caution when handling
Bloom Color: Pale Yellow
Bloom Time: Mid Summer
Foliage: Grown for foliage Evergreen
Other details: Drought-tolerant; suitable for xeriscaping This plant is monocarpic
Soil pH requirements: 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) 7.9 to 8.5 (alkaline)
Patent Information: Non-patented
Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets) From seed; germinate in vitro in gelatin, agar or other medium
Seed Collecting: Bag seedheads to capture ripening seed
On Jun 13, 2012, Hikaro_Takayama from Fayetteville, PA (Zone 6b) wrote:
I was at a home showing with my realtor in New Franklin, PA when I saw a clump of three yuccas with narrow, grassy leaves and 1 to 2 ft tall trunks. I decided to head over here to ID them, and it looks like they are Y. glauca (Palm Bob's first pic is almost a dead ringer for them).
The garden they were growing in, like the house and much of the rest of the property, unfortunately, had been neglected for a number of years, but the Y. glauca was doing just fine! I decided not to buy the place (because the house was a dump), but I was half-tempted to take one of the Yucca plants. ;)
Therefore I'd say that they are quite hardy and seem to do fine with our typical not-so-well drained soils.
On Jun 5, 2009, darylmitchell from Saskatoon, SK (Zone 3a) wrote:
I have a soapweed yucca growing in my south-facing flowerbed. It seems to be doing well in the dry clay soil. Now in its second year, it's slow-growing and hasn't bloomed yet. I would expect it to take some time to get to an appreciable size, given our short summers and long, cold winters.
On Mar 22, 2009, bt18 from Union City, OK (Zone 7a) wrote:
This yucca grows all over Oklahoma and is native to the area I live. The leaves are very tough and hard to cut especially with a dull pair of clippers. I have one I dug up just outside of town and hasn't bloomed since I have had it but it is much bigger than when I first got it.
On Mar 31, 2005, nevadagdn from Sparks, NV (Zone 7a) wrote:
I disagree with palmbob--I find this yucca extremely attractive--attractive enough to merit an "ooh! what's that????" at our local arboretum and a quick trip to a nearby nursery that specializes in dryland plants. It's proven very hardy and very drought-tolerant.
This Yucca is native further north than any other. It grows into Alberta (and Saskatchewan), Canada (Which by the way is zone 3a, with occasional 2b winters. Despite common belief this Yucca does from a trunk. The trunk grows slowly to about 2 feet. It is not monocarpic, as parent plants set seed many times before dieing. I personally can vouch for flowering and seeding of the same plant for 5 seasons.
This is a much better plant than people give it credit for, and its hardiness is UNMATCHED among Yuccas, it is hardier even than Yucca filamentosa and flaccida.