Pitaya Cultural Calendar
From the Horticultural Sciences Department, Florida Cooperative Extension Service
Institute of Food and Agricultural Sciences, University of Florida
Wait about a month after planting or until plants begin to grow to start fertilizing. Fertilization in the first year should be frequent (every 2 months) with light applications of 0.25 lb (118 g) per plant. Use a 6-6-6, 8-3-9, 8-4-12 (palm special) with 2-3% magnesium or similar formula. The addition of 4 lbs (1.2 kg) of well-decomposed manure or compost around the base of the plant but not touching the stem is recommended during the first year. Apply 4–6 minor element sprays from late March to September.
Plants growing in high-pH, calcareous soils should be drenched around each plant with 0.25–0.5 oz (7–15 g) of chelated iron. Apply small amounts of ferrous (iron) sulfate at the base of plants growing in neutral and low-pH soils. The rainy, warm season is the best for the application of minor elements.
During the second and third year, gradually increase the amount of dry fertilizer to 0.3–0.4 lb (136–182 g) per plant every two months using any of the above formulas. Gradually increase the amount of manure or compost to about 6 lbs (2.7 kg) per plant. Use the same number of minor element sprays and gradually increase the iron chelate soil drench to 0.75–1.00 oz (22–29 g) per plant. During the fourth year and after, apply 0.50–0.75 lbs (227–341 g) of fertilizer per plant of the above formulas, using 3–4 applications per year and the same minor element and iron chelate recommendations. Apply manure or compost at 5 lbs (2.2 kg) each application, twice per year.
Crane, Johathan H., Balerdi, Carlos F. and Maquire, Ian. "Pitaya Growing in the Home Landscape." edis.ifas.ufl.edu. This document is HS1068, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Publication date Nov.2005. Revised Nov. 2016. Web. 17 June 2017.
Published 19 June 2017 LR