Black Sapote Cultural Calendar
From the
Horticultural Sciences Department, Florida Cooperative Extension Service
Institute of Food
and Agricultural Sciences, University of Florida
Cultural calendar for black sapote production of mature (bearing) trees in the home landscape
Operation |
Jan. |
Feb. |
Mar. |
Apr. |
May |
June |
July |
Aug. |
Sept. |
Oct. |
Nov. |
Dec. |
General NPK 1 |
|
|
|
Apply
NPK |
|
Apply
NPK |
|
|
Apply
NPK |
|
|
|
Nutritional sprays 2 |
|
|
|
Apply 2 to 3
foliar nutritional sprays during the warm period of the year. |
|
|
|
Iron applications 3 |
|
|
|
Apply iron
during the warm period of the year. |
|
|
|
Watering |
Water only
during prolonged dry periods. |
|
|
|
|
|
|
Water only
during prolonged dry periods. |
Insect control |
Monitor for
insect infestations. Contact your local UF/IFAS Extension agent for current control recommendations. |
Disease control |
Monitor for
disease infestations. Contact your local UF/IFAS Extension agent for current control recommendations. |
Pruning |
|
|
Selectively
prune to limit tree size and open the canopy to wind movement. |
|
|
|
|
1
NPK, nitrogen-phosphate-potash. Many formulations also contain
magnesium (Mg).
2 Nutritional sprays should contain
manganese, zinc, and other micronutrients.
3
Dry ferrous (iron) sulfate may be applied to trees growing in low-pH
soils; use chelated iron soil drenches for trees growing in high-pH
soils. |
Suggested fertilizer recommendations for black sapote trees for Florida
Year |
Times per year |
Amount/tree/application (lbs)1 |
Total amount/tree/year (lbs) |
Minor element sprays (times/ year)2 |
Iron chelate drenches (oz/tree/year) 3 |
1 |
4-6 |
0.25-0.5
|
1.0-3.0 |
4-6 |
0.5-0.75 |
2 |
4-6 |
0.5-1.0 |
2.0-6.0
|
4-6 |
0.75-1.0
|
3 |
4-6 |
1.0-1.5 |
4.0-9.0 |
4-6 |
1.0-1.5 |
4 |
2-3 |
2.0-2.5 |
4.0-7.5 |
2-3 |
1.5-2 |
5 |
2-3 |
2.5-3.0
|
5.0-9.0 |
2-3 |
2-4 |
6 |
2-3 |
3.0-4.0
|
6.0-12.0 |
2-3 |
2-4 |
7+ |
2-3 |
4.0-4.5
|
8.0-13.5 |
2-3 |
2-4 |
1
Use 6-6-6, 8-3-9, or a young-tree or slow-release fertilizer
2
The sprays should contain zinc, manganese, boron, molybdenum; they may
also contain iron. Foliar sprays are most efficient from April to
September.
3 Iron chelate soil drenches (iron
plus
water) will prevent iron deficiency; foliar sprays are generally not
effective. Apply soil drenches from June to September. |
Back
to Black Sapote Page
|
Bibliography
Crane, Jonathan H., and Carlos Balerdi.
"Black Sapote Growing in the Florida Home Garden." Horticultural Sciences
Dept., UF/ IFAS Extension,
HS1055, Original Pub. Nov.
2005, Revised Oct. 2006 and Nov. 2016, Reviewed Dec. 2019, AskIFAS, edis.ifas.ufl.edu/hs305.
Accessed 16 Dec.
2014, 24 Jan. 2018, 19 June 2020.
Published 16 Dec. 2014 LR. Last update 22 Nov. 2021 LR
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