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Starting from a tiny arrow shaped seed, and evolving into a plant with multi-petalled blooms, the zinnia growth stages are impressive.

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Zinnias are annual plants which go through their entire life cycle within a year.

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The first stage of growth is the germination stage, involving the stimulation of the zinnia seed to begin to grow.

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The next stage of growth is the seedling stage, as the tiny zinnia seedlings begin to grow.

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Next is the vegetative stage, during which the plant grows more stems and foliage, and the roots become established.

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The pre-flowering stage is next, with the formation of flower buds. This is the stage in which to pinch back the central flowering stems.

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The next is the flowering stage. This stage occurs when the zinnia plant begins producing zinnia flowers which are mature, and are in full bloom.

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During the flowering stage the zinnia flowers can be harvested. This is also the stage when pollination occurs.

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Next is the post flowering stage, which occurs as each zinnia bloom becomes spent and begins to produce seeds.

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The last zinnia growth stage is one of seed production. Zinnias can produce many seeds for harvesting.

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In order for the zinnia seeds to be viable, the spent blooms should remain on the zinnia plant until they become brown and dry.

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Knowing the zinnia growth stages helps us to know how the zinnia plant grows, and what to expect along the way for this adaptable plant.

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