Mango varieties — Sebastian, Florida

Low and moderate vigor mango varieties with anthracnose resistance suit most Sebastian yards, because a smaller tree is easier to cover on an Indian River County freeze night and easier to spray and pick.

The University of Florida keeps the reference list. UF/IFAS EDIS publication MG216 rates more than 35 Florida varieties for tree vigor, ripening month, fruit weight, production, anthracnose susceptibility and seed type (UF/IFAS EDIS). A selection of those ratings, useful for a quarter acre lot in the Sebastian Highlands or a narrow riverfront yard off Indian River Drive, is below.

Vigor is the first filter on a Sebastian lot. MG216 says trees of low to moderate vigor are more easily kept small through annual pruning than high vigor trees. 'Haden' and 'Kent', the classic grocery store shapes, are both rated high vigor, while 'Angie', 'Fairchild' and 'Rosigold' are rated low.

Cold does not separate them. MG216 reports that no significant difference in cold resistance among mango varieties or types has been observed in Florida (UF/IFAS EDIS). A Sebastian grower who wants a tree that survives the occasional Treasure Coast freeze gains more from a compact tree that fits under a frost cloth than from any particular name on the tag.

The popular list keeps growing. UF/IFAS Gardening Solutions names 'Pickering', 'Carrie', 'Coconut Cream', 'Sugarloaf', 'Nam Doc Mai', 'Orange Sherbert', 'Mallika', 'Maha Chanok', 'Keitt', 'Angie', 'Fairchild' and 'Valencia Pride' as popular Florida cultivars, and places mango in USDA Hardiness Zones 10A through 11 (UF/IFAS Gardening Solutions). Sebastian sits at the cool edge of that band, north of the commercial mango counties of Dade, Lee and Palm Beach.

Seed type decides whether a Sebastian mango comes true from seed, and the anthracnose rating predicts whether its bloom survives the damp Indian River County spring.

UF/IFAS splits the mangos sold to Sebastian growers into two families. Indian types typically have monoembryonic seeds and often highly colored fruit, and the fruit tend to be more susceptible to anthracnose and internal breakdown (UF/IFAS EDIS). Indochinese types, such as 'Nam Doc Mai' and 'Saigon', typically have polyembryonic seeds and green or yellow fruit that tend to be relatively resistant to anthracnose.

The seed difference matters for anyone in Sebastian tempted to plant a pit. A polyembryonic seed produces a tree identical to its parent, while a monoembryonic seed produces a hybrid, according to MG216. Gardening Solutions adds that trees grown from seed can take 10 years to bear and often give fibrous, bland fruit (UF/IFAS Gardening Solutions), so the grafted nursery tree remains the standard for a Sebastian yard.

Anthracnose is the disease that ruins mango crops in Sebastian and across Florida. MG216 calls anthracnose, caused by Colletotrichum gloeosporioides, the most important disease of mango in Florida, attacking flowers, young fruits, leaves and twigs, and notes that disease development is encouraged by rains or heavy dews. Mango bloom in Florida runs from December to April, so the rating column in the table above is the best single predictor of whether a winter bloom in Indian River County turns into summer fruit.

On the sandy soils of the Sebastian Highlands, UF/IFAS calls for a wide, deep hole with no fertilizer in it, a mound where water stands, and generous spacing from roofs and power lines.

The hole is bigger than most people dig. In sandy soil, MG216 says to remove a 3 to 10 ft ring of grass, dig a hole 3 to 4 times the diameter and 3 times as deep as the container, and skip fertilizer, topsoil or compost in the hole (UF/IFAS EDIS). Any compost goes into the excavated soil at no more than a 50:50 ratio, and the top of the root ball sits level with or slightly above the surrounding Sebastian sand.

Wet lots need a mound. MG216 notes that many Florida areas are within 7 ft or so of the water table and recommends a mound of native soil 2 to 3 ft high and 4 to 10 ft in diameter where occasional flooding occurs, a description that fits low spots in Indian River County after a summer storm.

Spacing follows vigor. Vigorous varieties, or any tree that will not be pruned, go 25 to 30 ft or more from buildings, power lines and other trees, while low vigor trees kept small by annual pruning may be planted 12 to 15 ft away, according to MG216. That difference is the reason 'Angie' or 'Fairchild' fits a typical Sebastian Highlands lot where 'Haden' does not.

The trunk needs protection from the lawn crew. MG216 calls for a grass free area 2 to 5 ft or more around the trunk and a 2 to 6 inch layer of mulch kept 8 to 12 inches from the trunk. Grafted mango trees and other fruit trees for Sebastian yards are listed among the fruit trees on Digital Towns Market. Digital Towns Market is our marketplace.

A Sebastian mango gets frequent light feedings in its first year, much less nitrogen once bearing, and water mainly while young, under fertilizer rules that exempt trees grown for their edible fruit both inside Sebastian, under Section 50-5 of the city code, and in unincorporated Indian River County.

Young trees eat often. MG216 says young trees should receive fertilizer every two to three months during the first year, beginning with a quarter pound and gradually increasing to one pound, then 2 to 3 applications a year after that (UF/IFAS EDIS). For bearing trees, nitrogen should be drastically reduced or eliminated and potash increased, a shift that matters on the acid sands around Sebastian, where MG216 says the fruit disorder called internal breakdown is more common and is aggravated by nitrogen.

The county rules carve out fruit trees. Indian River County Ordinance No. 2013-012, approved Aug. 20, 2013, bars fertilizer between June 1 and September 30 and within ten feet of any wetland or water body, but exempts vegetable gardens and trees grown for their edible fruit (Indian River County). The county page states that these regulations apply in the unincorporated areas of the county.

Sebastian has its own ordinance. On May 10, 2012, Vero News reported that the Sebastian City Council voted 4-1 to pass the Florida model fertilizer ordinance (Vero News), after members of groups including the Pelican Island Audubon Society and Friends of the St. Sebastian River pressed for tougher rules. The City of Sebastian links its current City Fertilizer Ordinance from its Florida Landscaping page (City of Sebastian). Last verified: October 10, 2026, on the City of Sebastian website.

Water is for the young. MG216 calls for watering every other day for the first week, 1 to 2 times a week for the first couple of months, and weekly during dry spells of 5 or more days for the first 3 years. It warns that lawn sprinklers on a timer can overwater mango trees and cause decline, a common setup in Sebastian yards.

Powdery mildew and anthracnose on the bloom do the most damage to Sebastian mango crops, while scales, thrips, mites and ambrosia beetles are the insects UF/IFAS lists for Florida trees.

Bloom protection is the main job. MG216 recommends one to two early spring applications of sulfur and copper, starting when the flower panicle is a quarter of full size and repeated 10 to 21 days later (UF/IFAS EDIS). Powdery mildew attacks leaves, flowers and young fruits during dry spring weather, so a dry Treasure Coast March brings a different threat than a wet one.

Insects rarely limit a Sebastian crop. UF/IFAS lists bud mites, red-banded thrips, false oleander scale, pyriform scale, dictyospermum scale, Florida red scale, mites, Florida thrips and ambrosia beetles as the most important insect pests in Florida, and says control is justified only when large infestations occur. Mango malformation, caused by a Fusarium fungus, is not common in Florida, but affected panicles should be pruned off and destroyed, according to MG216.

Diagnosis is local. Master Gardener volunteers with UF/IFAS Extension Indian River County diagnose plant problems and perform soil pH tests, and their Sebastian plant clinic meets Wednesdays from 10 a.m. to noon at the North Indian River County Library, 1001 Sebastian Blvd. on CR 512 (UF/IFAS Extension). The main extension office is at 7961 58th Avenue in Vero Beach, (772) 226-4330 (UF/IFAS Extension Indian River County).

Most mango varieties grown in Sebastian ripen between May and September, peaking in June and July, and fruit picked mature ripens in 3 to 8 days on a kitchen counter.

Maturity on a Sebastian tree shows in the shape. UF/IFAS says the crop is mature when the shoulders and the nose of the fruit broaden, and that flowering to maturity takes 100 to 150 days (UF/IFAS EDIS). Mature Florida trees average 4 to 6 bushels, or 220 to 330 lb, and grafted trees begin to bear 3 to 5 years after planting.

Ripening wants mild heat. The best ripening temperatures are 70 to 75 degrees F, and placing fruit in the refrigerator before it is ripe can cause chilling injury, according to MG216. A Sebastian kitchen in July is warmer than that range, which is one reason fruit picked from a Sebastian Highlands tree can shrivel if left out too long.

Pruning follows the harvest. UF/IFAS Gardening Solutions advises pruning within a month after the last fruits are picked and before October so next year's flowering is not affected (UF/IFAS Gardening Solutions). For Sebastian growers, that window falls in the heart of hurricane season, and MG216 notes that removing a few upper limbs each year also greatly reduces possible storm damage.