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. "Black Sapote Growing in the Florida Home Garden." This document is HS1055, one of a series of the Horticultural Sciences Department, UF/IFAS Extension. Original publication date Nov. 2005. Revised Oct. 2006 and Nov. 2016. edis.ifas.ufl.edu/hs305 Accessed 20 Jan. 2018.

Published 16 Dec. 2014 LR. Last update 20 Jan. 2018 KJ
© 2013 - growables.org
about credits disclaimer sitemap updates