How-to: Satsuma mandarin

01 Quick spec

~15°F

Hardiness (established)

'Owari'

Best variety here

Nov–Dec

Harvest window

The Zone 8a reality: North Texas hits the mid-teens °F in a hard winter, and that's the edge of survival for even the toughest citrus. The satsuma is the only one we'll plant in-ground, and only in a protected, south-facing microclimate with frost cloth and trunk-wrap ready. Younger trees are far more tender — keep the first 2–3 winters in a big container that can roll into the greenhouse during a deep freeze, then graduate the tree to the ground once it's well established.

02 Growing it here

Containers first, then ground

Start in a 20–25 gallon pot with a fast-draining citrus mix (potting soil cut with bark fines and perlite). Citrus hate wet feet. For the first few winters, wheel the pot into the 16×40 greenhouse whenever a hard freeze (mid-teens) is forecast. Plant in-ground only after the tree is 2–3 years established, and only on the warm south side of a building or wall.

Frost cloth & the freeze drill

For an in-ground tree, keep a frame and frost cloth on hand — drape to the soil and add a clamp light or string of old C9 bulbs underneath for a few degrees of insurance. Mound mulch and wrap the trunk graft. Water before a freeze (moist soil holds heat). Move pots in when nights drop below the upper teens; bring them back out once the cold snap breaks so the tree gets light and airflow.

03 The year

When	What
Late winter (Feb)	Light prune for shape; remove dead/crossing wood. First feeding of citrus fertilizer.
Spring	Bloom — intensely fragrant. Feed again. Move any container out of the greenhouse once frosts end.
Summer	Heavy water and a third feeding; fruit sizes up. Watch for leaf miner and scale.
Fall (Nov–Dec)	Harvest — satsumas color up while still a touch tart; taste-test before picking.
Hard freeze warning	Cover or roll in. Frost cloth + heat for in-ground; into the greenhouse for pots.

04 Problems & what to watch

Cold damage

The number-one killer here. A sudden mid-teens freeze on an unprotected or young tree means dropped leaves, split bark, and dieback — sometimes death to the graft. Defrost cloth, trunk wrap, and a freeze plan are not optional. After a freeze, don't prune damaged wood until new spring growth shows you what's truly dead.

Scale, pests & watering pots

Watch for scale and sooty mold, plus citrus leaf miner on tender flushes — treat with horticultural oil. Potted trees dry out fast in Texas heat: check daily in summer, but never leave them sitting in water. Yellow leaves usually mean either overwatering or a nitrogen/iron shortfall.

05 Harvest & beginner mistakes

Item	Note
When to pick	Color + taste, not calendar — satsumas can look orange before they're sweet.
How they store	Best eaten fresh; the easy-peel rind puffs and softens if left too long on the tree.
Yield	A mature tree is generous — plan to share or juice the glut.

Beginner mistakes to skip: planting a young tree straight in the ground (keep it potted and mobile for a few winters); choosing a tender citrus instead of a satsuma for the in-ground spot; no freeze plan ready before the first cold front; planting in heavy, poorly drained soil; and over-pruning frost damage before spring regrowth reveals it.