GrowSabzHow to grow mandarin in pots
Also called Mandarin Orange, Tangerine, kinoo, santra · Citrus reticulata
مینڈرین
- ☀️ Sunlight
- 6–8hours daily
- 💧 Water
- 7.5 Levery 3 days, 50 L pot
- 🌡️ Ideal temp
- 20–30°C
- 🪴 Min pot
- 50 L45 cm deep
- 🧺 Harvest
- 180–300days from sowing
- ⚖️ Yield
- 4 kgper 20 L pot
Mandarin is a long game. From seed it takes 3-7 years before you see a harvest, which is why most growers start from a nursery plant. Container growing is entirely possible, but the container has to be sized for a plant that will live in it for years.
Short answer
Grow mandarin in a 50 litre container at least 45 cm deep, watering about 1000 ml per 10 litres of soil every 3 days, and keep temperatures between 20 and 30 °C. First harvest comes 180–300 days after sowing.
Where to plant it
What size pot does mandarin need?
50 litres and 45 cm deep is the realistic minimum for a single plant. Pick a container below to see what changes.
| Container | Minimum size | Depth | Notes |
|---|---|---|---|
| Pot | 50 L | 45 cm | Use large pots with excellent drainage for dwarf varieties. Repot every 2-3 years. |
| Grow bag | 50 L | 45 cm | Fabric grow bags provide good aeration but dry out faster. |
| Open ground | — | 60 cm | Ensure well-draining soil and adequate spacing from other trees/structures. |
| Raised bed | 100 L | 60 cm | Provides excellent drainage and control over soil composition. Ideal for areas with poor native soil. |
Watering
How often should you water mandarin?
Every 3 days through the growing season, at about 1000 ml per 10 litres of soil — daily in hot weather, every 5 days when it turns cool. Water in the early morning. Drip irrigation or slow deep watering works best.
Too little water
- wilting leaves
- leaf curl
- fruit drop
- small fruit size
Too much water
- yellowing leaves
- leaf drop
- root rot
- stunted growth
Avoid: shallow frequent watering; standing water; waterlogging.
Climate
Can you grow mandarin where you live?
No hardiness zone needed — compare your actual temperatures against the plant's own limits.
| Ideal range | 20 – 30 °C |
|---|---|
| Survives | -4 – 40 °C |
| Germinates above | 18 °C — best at 25 °C, about 21 days |
| Flowers drop | above 38 °C |
| Sunlight | 6–12 hrs/day, best 8 |
| Frost | Medium sensitivity |
The flower-drop thresholds matter more than the survival ones. A plant can be perfectly alive at 40 °C and still give you nothing.
How cold is too cold for mandarin? Check your temperaturesEnter your night low and day high — see if it survives, and if it will cropTimeline
Mandarin growing stages, day by day
Click any stage to see what's happening. Durations shift with temperature — a warm season runs roughly a quarter faster than a cool one.
Feeding
Fertiliser schedule for mandarin
Feed on the interval below, changing what you give as the plant shifts from making leaves to making fruit.
| Stage | What to use | Per 10 L | Every |
|---|
How to prepare each feed
Common mistakes
Why mandarin fails, and how to avoid it
- A container that is too small
Below 50 litres the root run is too shallow. The plant grows, flowers late, and drops whatever it sets because it cannot support the crop.
- Watering too lightly
A daily splash wets the top few centimetres and nothing else. Mandarin wants about 1000 ml per 10 litres of soil — one deep soak beats three shallow ones.
- Ignoring the flower-drop threshold
Above 38 °C flowers fall before setting. The plant can look perfectly healthy and still give you nothing — shade it through the hottest hours.
- Harvesting too late
Left too long the colour changes, seeds harden and the flavour sharpens. Pick on the signs listed below, not on the calendar.
- Planting it beside Fennel
Produces substances from its roots that can inhibit the growth of many nearby plants, including citrus.
Companions
What to plant with mandarin
Good neighbours
Repels nematodes and other soil-borne pests, protecting citrus roots.
Acts as a trap crop for aphids, drawing them away from the mandarin tree, and can deter other pests.
Attracts beneficial pollinators like bees and predatory insects that help control pests.
A dynamic accumulator, it draws up nutrients from deep in the soil, making them available to the mandarin tree when used as mulch.
Its strong scent can deter various pests, including some types of flies and beetles.
Keep apart from
Produces substances from its roots that can inhibit the growth of many nearby plants, including citrus.
Members of the brassica family (cabbage, broccoli, kale) can compete heavily for nutrients and may stunt the growth of young citrus trees.
Walnut trees release juglone, a chemical that can be toxic to many plants. While citrus is moderately tolerant, close proximity is not recommended.
Large, established trees with extensive root systems will aggressively compete with mandarin trees for water and nutrients, hindering their growth.
Problems
Mandarin pests and diseases
Each lists the weather that brings it on, so you know when to start checking rather than reacting once it's established.
Aphids humidity any · temp 15-25
Small, soft-bodied insects that cluster on new growth, sucking sap and causing leaf distortion. Secrete honeydew, leading to sooty mold.
Scale Insects humidity any · temp any
Small, immobile insects that attach to stems, leaves, and fruit, feeding on sap. Can cause yellowing, leaf drop, and sooty mold.
Citrus Leafminer humidity any · temp >20
Larvae tunnel into young, tender leaves, creating silvery, serpentine mines and causing leaf distortion and curling. Primarily affects new growth.
Spider Mites humidity <50% · temp >27
Tiny pests that cause stippling (tiny dots) on leaves, leading to bronzing and eventual leaf drop. Fine webbing may be visible on undersides.
Asian Citrus Psyllid humidity any · temp >15
Small, mottled brown insects that feed on new flush, causing leaf distortion. Most importantly, they are the primary vector for Huanglongbing (HLB) / Citrus Greening disease.
Citrus Canker humidity >80% · temp 20-30
Bacterial disease causing raised, tan-to-brown lesions with a water-soaked margin and yellow halo on leaves, stems, and fruit. Spread by wind-driven rain and human activity.
Huanglongbing Hlb humidity any · temp >15
Also known as Citrus Greening. A devastating bacterial disease causing asymmetrical yellowing of leaves (blotchy mottle), stunted growth, misshapen and bitter fruit, and eventual tree decline. Spread by Asian Citrus Psyllid.
Phytophthora Root Rot humidity high · temp 18-30
Fungal disease causing root and crown rot, leading to yellowing leaves, dieback, and eventual tree death. Often accompanied by gumming on the trunk near the soil line. Favored by poor drainage and overwatering.
Sooty Mold humidity any · temp any
A black, powdery fungal growth that covers leaves and fruit, developing on honeydew secreted by sap-sucking insects (aphids, scale, whiteflies). Reduces photosynthesis.
Zinc Deficiency humidity any · temp any
Causes interveinal chlorosis (yellowing between veins) on new, young leaves, often with small, narrow leaves (little leaf). Common in alkaline soils.
Iron Deficiency humidity any · temp any
Causes severe interveinal chlorosis on the newest leaves, with veins remaining distinctly green. Can lead to overall stunted growth. Often due to high pH soils.
Harvest
When to harvest mandarin
First picking falls between day 180 and day 300, and the plant then keeps producing for about 60 days. Pick often — what you leave on the plant signals it to stop making more.
How to tell it's ready
- Full color (orange)
- Slightly soft to the touch
- Sweet aroma
- Easily separates from stem with a gentle twist
How much to expect
Storing it: Room temperature for a few days, or refrigerate for up to 2-3 weeks.
Questions
Mandarin: common questions
How long does mandarin take to grow?
About 180 days from sowing to the first harvest, with picking usually starting between day 180 and day 300. It then keeps producing for roughly 60 more days. Warm weather pulls that forward; cool weather pushes it back.
What size pot does mandarin need?
At least 50 litres and 45 cm deep for one plant. A raised bed wants 100 litres of soil and 60 cm of depth.
How often should I water mandarin?
About 1000 ml per 10 litres of soil, every 3 days in normal weather — daily when it is hot and every 5 days when cool. Water in the early morning.
What temperature does mandarin need?
It does best between 20 °C and 30 °C and survives from -4 °C to 40 °C. Seed needs soil above 18 °C to germinate, ideally around 25 °C.
Can I grow mandarin in winter?
It tolerates cold better than most, down to about -4 °C, so a sheltered spot or a cold frame will often carry it through.
How do I know when mandarin is ready to harvest?
Full color (orange); Slightly soft to the touch; Sweet aroma; Easily separates from stem with a gentle twist. Once picked: room temperature for a few days, or refrigerate for up to 2-3 weeks.
How much does one mandarin plant produce?
Roughly 4 kg from a 20 litre container, or about 30 kg in open ground. Larger containers give proportionally more, up to a point.