Spring is the most suitable season for Platycladus orientalis growth on arid southern mountain slopes. The ideal temperature range is from 10℃ to 17℃. If the species is planted earlier or later than the optimal season

the afforestation survival rate is lowered. Annual growth of juvenile trees exhibits one slow stage and two fast stages. Stage boundaries are the first 10-day period and the mid-summer

in this case mid-July

with growth greater in the earlier stage than in the latter stages. Rainfall may simulate growth but high temperatures restrain growth. That is

although the Platycladus orientalis can endure aridity

growth is promoted more by moisture than optimal temperature. The species responds sensitively to rainfall

usually over 10 days.