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Fruits, Nuts & Perennial Crop CalendarsSubtropical Fruit Calendar
Subtropical fruit trees do not follow a northern winter dormancy, so the calendar is built around cold snaps, rainy and dry seasons and bloom. This guide explains the logic.
Key points
- Cold risk, not winter dormancy, drives the subtropical year.
- Plant after the cold season and choose adapted varieties.
- Match water and fertilizer to tree stage and local rules.
- Check extension signs of ripeness for each crop.
What makes the subtropical calendar different?
Subtropical trees may keep leaves all year and respond to cool or dry periods rather than hard winters. Bloom can be triggered by temperature or by a dry spell, depending on the crop.
Because conditions vary across Florida, the Gulf coast, Texas, California and Hawaii, there is no single calendar. Use your state extension publications from the University of Florida IFAS, UC ANR, LSU AgCenter, Texas A&M AgriLife or CTAHR as appropriate.
Plan your calendar as a set of triggers, such as the first cold front, the start of the dry season or first bloom, instead of dates. For example, a grower near the coast may face salt and wind, while an inland grower may face deeper cold, and each needs a different plan.
How do you manage cold risk?
Cold is the main threat. Know the lowest temperature your crop and variety can take and check forecasts from November through March in many regions. Young trees are more tender than mature ones.
Protection methods include covers, wind or heat strategies and good site selection. Planting on a warmer slope or near a structure can help. Follow local fire and safety rules when using heat.
Know where cold air collects on your property, because a few feet of elevation or a wall can change the damage you see. Keep an old blanket or frost cloth stored where you can reach it quickly, since cold nights give little warning.
- Know your crop's cold limit
- Protect young trees first
- Choose a warmer site when you can
When should you plant subtropical trees?
Plant after the danger of cold has passed so young trees can establish before the next cold season. In many areas that means spring or early summer, with enough time before the next cool season.
Choose varieties adapted to your area and confirm that nursery stock is healthy. Regulated pests and diseases mean that moving plants across state lines can be restricted, so buy from licensed nurseries.
Young trees should be planted with enough time and water to settle in before stress arrives.
How do rainy and dry seasons shape care?
Heavy rain can cause disease and nutrient loss, and dry seasons call for irrigation. Match watering to soil, tree age and weather, and follow local water rules.
Mulch can help moisture and weeds, but keep it away from trunks. Drainage matters, since many subtropical trees dislike standing water.
Fruit that bloomed in a wet spell often shows more disease later, so scout with that in mind. Check drains and ditches before the rainy season starts, so water leaves the orchard quickly.
What do fertilizer and pest timing look like?
Fertilizer timing for these trees often follows growth flushes. Use a soil test and local recommendations, and remember that nutrient management rules vary by state, with some regions restricting fertilizer use near water.
Pests and diseases change through the year. Scout regularly, use extension help to identify problems and follow labels and licensing rules if you use any product. Protect pollinators during bloom.
Citrus greening and other regulated diseases are a concern in some states, so report suspected symptoms to your state agriculture department.
How do you time harvest?
Harvest signs differ by crop. Some fruit, like citrus, ripens on the tree and does not improve after picking, while others, such as avocado and mango, are often picked mature and ripen off the tree.
Check your extension crop guide for the right signs. Harvest window varies by variety and year, so a calendar is a range and not a promise.
Ripeness charts from extension help, and so does tasting a sample fruit before you pick a whole tree. Share ripeness notes with local growers, who often know small differences by variety and rootstock.
How do you plan across the whole year?
Build a plan around four things: cold risk, rain and dry periods, bloom and harvest. Mark each on a one-page calendar and note what you do before, during and after.
Keep a record of cold events, damage and recovery. These notes help you decide which varieties and sites work and which do not.
After a freeze, wait to see where new growth starts before pruning out damaged wood, since damage can take weeks to show. Write down what you learn each season, since your own records are the best guide to your site. Review them with your extension office before the next season.
Sources and further reading
Last reviewed: November 2026. Educational information, ranges only. Confirm timing with your county extension office.