Position
Plant your Morello cherry tree in a sunny spot where it won’t get too much wind. But be aware that these trees like cold winters and cool to moderate summers (not hot). Afternoon shade or netting ensures that the tree is protected from the sun in the afternoon to avoid sunburn.
The best time to plant your tree is in autumn or winter, so it can acclimate during the colder part of the year.
Size
If left unpruned, your cherry tree will reach a height of about 3.5 metres at maturity (around seven years old). It can be pruned to a height of 2 meters, making it easier to pick the fruit over time. Give your tree about 5 metres of space.
Soil Type
Cherries thrive in well-draining, fertile soil that can retain moisture. A pH of 6.5 is ideal, but a range of 5.0 to 8.0 should be acceptable.
Mulching
Add a thick layer of pine bark mulch, keeping it about 20 to 30 centimetres away from the tree trunk (any closer may cause excess moisture and damage the trunk). This will retain the moisture in the soil and will prevent weeds from taking over.
Watering
Water the tree well in warm, dry conditions. For the rest of the year, ensure the soil is moist, not wet, flooded, or waterlogged.
Fertilising
Apply 1 teaspoon of our slow-release nitrogen-rich berry fertiliser every 4-5 months.
Pests and Diseases
Aphids, citrus psylla, red scale, citrus greening. Spraying regularly with Agricultural Neem Oil or Effective Microorganisms (EM Control ) will assist in either prevention or after the fact. If you already have aphids or mites, wash the tree with a harsh hosing, and when dry, spray with Neem oil or EM Control.
Practice good garden hygiene (remove fallen fruit and leaves).
Watch for root rot (caused by overwatering) and fungal infections during wet periods.
Pruning
Pruning is essential to encourage your tree to produce fruit. Lop off any diseased, damaged, or dead branches, but don’t aggressively prune it until it has made its first crop. The fruit is produced in mature trees on the previous year’s long stems and short branches. Prune each stem from last year to half its length. Remove old wood to allow the tree to focus its resources on the fruitful boughs.
Harvesting
Your sour cherries are ready to enjoy when they come off the stem easily. They don’t ripen once they’re picked, though, so be sure to harvest them when they are ripe.
