Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
From: Brownwood, TX
Region: Southwest
Topic: Trees
Title: Care of huisache tree (Acacia farnesiana)
Answered by: Nan Hampton
Acacia farnesiana (huisache or sweet acacia) is a native of south Texas. The northern edge of its natural range is quite a bit south of Brownwood. According to the Texas A & M Horticulture database, Zone 8 is the recommended USDA minimum cold hardiness zone for huisache. Brownwood is in Zone 8a, the northern portion of the zone, so depending on the severity of the winter, your huisache may or may not flower. Late frosts often kill the flower buds. Also, since you are really out of its natural range, in a severe winter there is the possibility that it could freeze to the ground.
Typically, the tree has multiple trunks that fan out as it grows. There really isn't a need to stake it and pruning it is up to you, depending on the shape and size you want for your tree. If you want it to be a single-trunk tree, then you will need to prune for that shape. However, it makes an attractive dense shrub without pruning.
Transplant shock in Chestnut Oak in Waukesha WI
September 13, 2009 - Bought and had nursery install a 4" diameter, 16' tall chestnut oak. Watered it as instructed-every 2nd or third day-hose stream size of my pinky for 45-60 minutes. It was planted in July. Just l...
view the full question and answer
Transplanting aspens and Colorado blue spruce trees
August 18, 2009 - Please help me with info on transplanting aspen and blue spruce trees in Colorado. I live at 8600ft and have tons of deer. thx
view the full question and answer
Wild Texas olive trees in Chappell Hill TX
July 17, 2009 - Are wild texas olive trees male and female? Mine is evergreen with no olives. I would like to have another that is evergreen and has no fruit but all I find are deciduous and have fruit.
view the full question and answer
Fertilizing oaks to produce more acorns
March 04, 2009 - What type of fertilizer would I use on oak trees to possibly increase growth and acorn production ? I have some flooded oak timber that is home to migrating ducks but there is little for them to eat.
view the full question and answer
Aphids in pecan tree from Austin
July 14, 2012 - Last year at this time (midsummer) everything under the canopy of our 60+ year old pecan tree was covered with a sticky substance--plants, lawn furniture, concrete pool deck..Since we had never seen t...
view the full question and answer
![]() |
Support the Wildflower Center by Donating Online or Becoming a Member today. Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends. |