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GrowFAQ : Blooming &
ripening

How do I determine a female sex plant from a
male?

Added by:
MisterIto  Last edited by:
MedMan  Viewed: 539 times

Rated by 38 users:
8.61/10

Preflowers, as opposed to full blown
flowers, generally appear after the fourth week of
vegetative growth from seed. Check carefully
above the fourth node. Please note that preflowers are
very small and impossible to differentiate without
magnification. A photographer's 10x loupe is handy
indeed when examining preflowers.

As the images
below demonstrate, the female preflower is pear shaped
and produces a pair of pistils. Frequently, the female
preflowers do not show pistils until well after the
preflowers have emerged. Thus, don't yank a plant
because it has no pistils.Pistillate preflowers are
located at the node between the stipule and emerging
branch.

Female (pistillate)

Female (pistillate)

Image courtesy of Uncle Ben

The
male preflower and flower may be described as a "ball on
a stick." Frequently, a male plant will develop mature
staminate flowers after prolonged periods of vegetative
growth. These appear in clusters around the nodes.

The following image shows a male plant in early
flowering. Staminate flowers are located at the node
between
the stipule and emerging branch. Note the
clusters of flowers.

Male (staminate)

The image below shows a male pre flower after 24
days of 18/6.

Image contributed by:
surfed

Last modified: 20:22 - Nov 23,
2000

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faq:264 "How do I determine a female sex plant
from a male?"