Arroyo Sweetwood

Arroyo Sweetwood

Myrospermum sousanum

25 feet

20 feet
Northern Mexico
  • Full Sun
  • Part Sun/Shade
  • Very Low
  • Flowering
  • Attracts Pollinators

About This Plant

Light shade. Semi-evergreen. Arroyo Sweetwood was first selected by plantsman Lynne Lowery, growing in a dry gravel arroyo near Monterrey, Mexico. It may be a bit early to evaluate this recent introduction, but Arroyo Sweetwood has proven fast-growing and vigorous in Texas. Big specimens can be seen around Trinity University in San Antonio. It survived temperatures down to 8 degrees in Abilene. This non-native reseeds easily, so use with caution near natural areas.

Vanilla-scented white flowers appear in spring.


Some slight tip dieback can be expected in severe freezes (below 15 degrees). Pruning cuts should only be made at a bud or branch; in general, focus on minimizing the number of dead, damaged, or rubbing branches. As with any tree, remove no more than 25% of the canopy during any five-year cycle. Leave the upper 2/3 of any tree’s crown uncut to maintain a healthy specimen, never removing more than the lowest third of the tree in a single pruning period.

Mulch with about 2” of woodchips or pine bark wherever possible. (In general, a tree’s mulched area should be six feet at minimum.)


Plant Type:
Large Tree
15-25' H, 10-20' W
Sunlight Requirements:
Full Sun, Part Sun/Shade
Soil Types:
Clay, Sandy, Thin
Bees, Butterflies, Pollinators
Flower Color:
Bloom Time:
March, April
Freeze Hardy:
Coupon Eligible:

This plant goes well with

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