One of the most common questions we get at Flying Dragon Nursery is: 'Can I grow citrus in a pot?' The short answer is yes — and with the right setup, potted citrus trees can be incredibly productive. Here's everything you need to know.
The Best Citrus Varieties for Pots
Not all citrus are equal in containers. The best varieties for pot growing are compact types grafted onto the Flying Dragon dwarf rootstock, which keeps trees to a manageable 1.5–2 metres. Top choices include Meyer lemon (reliable, heavy cropping), Calamansi (prolific and fragrant), finger limes (column-shaped growth perfect for narrow spaces), and Lemonade (sweet-fruited and ornamental). Avoid full-sized rootstocks in pots — they'll quickly become root-bound and frustrated.
Choosing the Right Pot
Size matters. Start with a pot that's at least 40–50cm in diameter, and plan to repot every 2–3 years as the tree grows. Terracotta pots look beautiful but dry out quickly — plastic or fibreglass are more forgiving for busy gardeners. Ensure excellent drainage; citrus hate wet feet and will show yellow leaves quickly if waterlogged.
The Perfect Potting Mix
Citrus need free-draining, slightly acidic soil. Use a premium potting mix blended with about 20% coarse pumice or perlite for drainage. Avoid standard garden soil — it compacts too much in pots. Top-dress annually with fresh mix and a slow-release citrus fertiliser.
Watering: The Biggest Mistake Growers Make
Overwatering kills more potted citrus than anything else. Water deeply but infrequently — allow the top 3–4cm of soil to dry between waterings.
Fertilising for Maximum Fruit
Potted citrus need regular feeding — nutrients leach out with every watering. Use a slow-release citrus fertiliser in spring and summer, supplemented with a liquid seaweed feed monthly. Watch for pale leaves, which often indicate nitrogen or magnesium deficiency. A dose of Epsom salts (1 tbsp per litre of water) fixes magnesium deficiency quickly.
Winter Care in New Zealand
Most of New Zealand's citrus growing regions are mild enough for pots outdoors year-round. In cooler areas (Wellington south, elevated sites), move pots to a sheltered wall or unheated greenhouse over winter. The Flying Dragon rootstock provides excellent cold tolerance down to around -8°C when established.