Dasylirion longissima

Mexican Grass Tree
Plant Type

Shrub

Evergreen-Deciduous

Evergreen

Overall Mature Size

Large

Mature Height & Spread

10-15′ x 8-10′

Exposure

Full Sun, partial Shade

Water

Medium, Low Water

Flower Color

White

Bloom Time

Summer

Special Features

Deer Resistant, Low Water Use

Container Sizes

#1, #5, #15

Natural Growth Habit

Clumping

Sunset Garden Zones

24-Dec

Dasylirion longissima (Mexican Grass Tree) Many horticulturists would consider this to be quite a stunning plant. It needs lots of room to grow. It forms a dome of blue-green leaves that have an unusual swaying movement in just the slightest breeze. It grows to 8-10′ wide. If the leaves are cut back to keep it smaller the normal shape is marred. Both male & female plants have very tall flower stalks that reach 10-15′. Female flowers turn a lovely russet color as they mature. Dasylirion longissima blooms in late winter. After several years (up to 50 or so) it will start to develop a trunk. It can be grown in a pot for quite some time but eventually must be planted in the ground. In fire prone areas it is considered fire-retardant. This native of Mexico requires good soil drainage.

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