Our handbook "Orchids in the San Joaquin Valley" compiled by Richard Buchter, is tailored to growing orchids in Central California climate.  It is in no way intended to take the place of the many excellent books written by authorities on the botanical peculiarities and cultural requirements of the Orchidaceae.  This handbook contains information which both the new and the experienced grower may find useful.  The orchid culture recommendations are offered as simple and generally applicable practices for use in the San Joaquin Valley. 

The following information has been extracted from "Orchids in the San Joaquin Valley".

August in the Greenhouse

This can be the most critical month for orchid culture in the Valley.  Very high temperatures and bright sun make it essential that plants receive much needed fresh air, humidity and optimum air circulation.  Dampen all benches and walk areas.  New growths are fully matured by now.  Observe your plants regularly.  This is a time when electric power usage is at its maximum.  If you plan to be away from home for more than a day, arrange to have someone check your greenhouse daily as power brownouts/shortages may occur with disastrous effects on your plants.

CATTLEYAS   Same shading is essential.  Leaf “sunburn” damage can not be remedied.  Protect flowers from misting spray.

MILTONIOPSIS    Repot now if not done in spring.

ODONTOGLOSSUM    End of August is the best time for repotting Odont. crispum and its hybrids.

PHALAENOPSIS   Growth is continuous, so provide sufficient shade, humidity, air movement and fertilizer.  Keep roots from drying out.

PAPHIOPEDILUM   Same as for Phalaenopsis above.

VANDA   Gradually exposing fully grown plants to full sunlight will further formation of buds.

Housekeeping Tasks

1.   Keep greenhouse and benches tidy.  Arrange plants to provide as much “elbow room” as bench space permits without crowding.

2.   Prepare your plants for the Fresno Fair in October.  Now is a great time to clean plants and pots, stake flower growths and recheck labels.

3.   Check plants for ants, mealy-bugs, scale and slugs/snails.