Citrus reticulata 'Owari Satsuma'
fruitOwari Satsuma is the cold-hardy Japanese mandarin that handles brief dips into the mid-teens once mature, making it the most reliable citrus for the Gulf South and the West Coast outside frost-free zones. The seedless easy-peel fruit has tender juicy bright-orange flesh with a sweet flavor balanced by subtle floral notes.
Sun
full sun
Water
Every 5 days
Harvest
~24 months
to first harvest
Difficulty
easy
Lifecycle
perennial
Comes back every year
Spacing
12-15 ft in ground; large pot for container culture
Planting Depth
Same depth as nursery container; never bury graft
Soil pH
6.0-7.0
Soil Type
Rich, well-draining
Hardiness Zones
Zones 8 – 12
When to Fertilize
Every 4-6 weeks during active growth, March through September
Fertilizer
Citrus fertilizer with micronutrients (8-8-8) plus iron and zinc
Plant in full sun on well-drained slightly acidic soil. Hardy in zones 8b to 11 once established; mature trees tolerate brief lows around 15 to 20F. In colder regions grow in a 15 to 20 in pot that can move indoors. Set the tree at the same depth as the nursery container; never bury the graft. Self-fertile. Prune lightly any time of year for shape and to remove crossing branches.
Direct sow
Apr 15
Projected first harvest
Nov 1 · Year 3
Year 1
Good neighbors that attract beneficial insects or deter pests
Proactive ways to stop trouble before it starts — tap a name with an arrow for its full guide
Limit pruning, time horticultural oil sprays to new flushes, and hang yellow sticky cards to monitor adults
Avoid heavy nitrogen, encourage ladybugs and lacewings, and blast colonies with water
Apply dormant oil in late winter to smother overwintering scale
Treat the underlying aphid or scale infestation; sooty mold lives on insect honeydew and clears once the pests are gone
Owari Satsuma ripens October through December and does not hold well on the tree once mature, so pick promptly. Look for full orange color and a fruit that gives slightly to thumb pressure. Snip with pruners (do not pull, which damages the soft rind). Stored in a cool spot, Satsumas keep for two to four weeks.
About 53 calories per 100 g with 1.8 g fiber, 26.7 mg vitamin C, and 166 mg potassium. Mandarins also supply nobiletin and tangeretin, citrus-specific flavonoids studied for cardiovascular benefits.
For educational and informational purposes only — HomeSown is not medical, health, or other professional advice. Always positively identify any plant before handling or eating it; some plants, and some parts of otherwise-edible plants, are toxic. Consult a qualified professional before consuming or otherwise using any plant, especially if you are pregnant, nursing, taking medication, or have a health condition.
Year 2
Year 3