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Why do palm trees turn yellow?

Palm trees need a proper balance of macro- and micronutrients in order to stay green and thrive. They may turn yellow when they’re deficient in essential nutrients such as nitrogen, manganese, magnesium — and especially in Florida — potassium. Pick up a nutrient-rich fertilizer, such as O’Neil’s Plant Health Care 3-Season Blend or Summer Blend for Florida palms, to restore the proper balance of nutrients to your trees.

How often should I water my palm tree in Florida?

Established palm trees need to be watered 1 to 3 times a week depending on the season and species of your palm tree. Palm trees need more water during warmer months and less during cold months. During the winter, watering once a week should be sufficient. The soil should always feel damp, not wet. Adjust the water amount accordingly.

Newly transplanted palms have a tendency to lose moisture, so if you’ve newly planted your palm tree (in which case, congrats, new palm parent!), water it more often for the first two weeks — every day for the first week and every other day for the second week — until they’ve developed new roots. And water it deeply to make sure moisture is reaching the roots.

Water your palms early in the morning or late in the evening when temperatures aren’t too high, especially during the summer. This helps avoid frying the leaves of your palms.

How often should you water trees in Florida?

A general rule of thumb is that Florida trees should be watered about once a week during the growing season, but this can depend on the tree species as well as temperatures and rainfall. The best way to tell if your Florida tree needs water is to check the soil about 1” deep around the tree. If it’s totally dry, your tree should be watered. If it’s moist or wet, you should wait and check again.

How much water do I give my Florida tree?

A general rule of thumb for watering Florida trees is 5 gallons per inch of trunk diameter. Rather than water directly next to the trunk, target the drip line or the edge of the root ball, unless your tree hasn’t established roots yet outside of the planting hole. Make sure to apply the water slowly, and water deeply to encourage deeper root growth to help anchor your tree better and protect it from droughts.

How often should you fertilize trees in Florida?

How often you need to fertilize your trees in Florida depends on the type of tree and the fertilizer formula you use. For instance, a lot of leading, off-the-shelf fertilizer brands may require more applications, as their formulas can contain as much as 25% fillers. But if you use O’Neil’s Plant Health Care blends, which have absolutely no fillers and a 6-month slow-release polymer coating, you only need to apply our blend 4 times a year — once every season.

What is the best fertilizer for Florida trees?

Unfortunately, due to Florida’s unique climate and soil composition, the conventional, store-bought fertilizers you find on the shelves of most retailers aren’t designed to meet the needs of our plants and trees. With the porous nature of Florida’s sandy soil and our heavy rainfall, it’s difficult for Florida soils to retain key macronutrients such as potassium and nitrogen. Whereas a standard NPK fertilizer (“N” stands for Nitrogen, “P” stands for phosphate, and “K” stands for potassium) has a ratio of 12-12-12 or 12-8-6, Florida’s trees requires unique ratios that account for the rich phosphorus levels and low potassium levels in our soil  —  0-0-22 during the summer and 8-0-15 the rest of the year. Additionally, a variety of other macro- and micronutrients, such as magnesium, manganese, and iron, are needed in order to ensure proper tree health. For this reason it’s best to use fertilizers specifically formulated for Florida’s soil, such as O’Neil’s Plant Health Care blends.

O'Neil's Palm Canopy Table
Common Name Scientific Name Canopy Radius
Meters Area
African Oil Palm Elaeis guineensis 21 6.4 1385 129
Areca Palm Dypsis Iutescens 11.5 3.5 415 32
Bismarck palm Bismarckia nobilis 10 3.0 314 29
Canary Island Date Palm Phoenix canariensis 12.5 3.8 491 46
Carpentaria Palm Carpentaria acuminata 9 2.7 254 24
Chinese Fan Palm Livistona chinensis 10 3.0 314 29
Christmas Palm Adonidia merrillii 5 1.5 78 7.2
Clustering Fishtail Palm Caryota mitis 11.5 3.5 415 39
Date Palm Phoenix dactylifera 10.5 3.2 346 32
European Fan Palm Chamaerops humilis 3 0.9 28 2.6
Everglades Palms Acoelorrhaphe wrightii 12 3.6 452 42
Fish Tail Palm Caryota rumphiana 11 3.4 380 35
Florida Royal Palm Roystonea regia 12.5 3.8 491 46
Footstool Palm Livistona rotundifolia 6.5 2.0 133 12
Foxtail Palm Wodyetia bifurcata 9 2.7 254 24
Green Thatch Palm Thrinax radiata 6 1.8 113 10
Jelly Palm Butia capitata 10 3.0 314 29
Joannis Palm Veitchia joannis 10 3.0 314 29
Kentia Palm Howea forsteriana 7.5 2.3 177 16
King Alexander Palm Archontophoenix alexandrae 12 3.6 452 42
Macarthur Palm Ptychosperma macarthurii 8 1.5 201 7.2
Majestic Palm Ravenea rivularis 7 2.1 154 14
Malakula Palm Veitchia winin 7.5 2.3 177 16
Malayan Dwarf Coconut Palm Cocos nucifera 12 3.6 452 42
Mexican Fan Palm Washingtonia robusta 6.5 2.0 254 12
Miraguama Palm Coccothrinax miraguama 5 1.5 78 7.2
Palmetto Palm Sabal palmetto 8.5 2.6 227 21
Princess Palm Dictyosperma album 8 2.4 201 19
Pygmy date Palm Phoenix roebelenii 5 1.5 78 7.2
Queen Palm Syagrus romanzoffiana 10 3.0 314 29
Red Latan Palm Latania lontaroides 8 1.7 201 19
Red Neck Palm Dypsis Iastelliana 10.5 3.2 346 32
Solitaire Palm Ptychosperma elegans 5 1.5 78 7.2
Spindle Palm Hyophorbe verschaffeltii 5.5 1.7 95 9
Triangle Palm Dypsis decaryi 9.5 2.9 284 26
Wild Date Palm Phoenix reclinata 16 4.9 804 75