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How to Grow and Care for Zinnia Plants

Zinnia elegans

This is an annual plant or it is commonly grown as an annualThis plant grows best with full sun for most of the dayOnce established this plant requires little or no supplemental wateringThis plant will tolerate some drought, but benefits from periodic wateringHummingbird PlantButterfly FlowerNo DeerWhite flowering plantRed flowering plantPink flowering plantYellow flowering plantPurple flowering plantorange flowering plantGreen flowering plantA photograph is availableHow to Use the Plant Care Icons at The Garden Helper

Zinnias are very easy to grow annual plants.
They produce an abundance of bright and often multi colored, 1-7", single
or double flowers from early summer until the first frost.
Anglen the Garden Gnome There are hundreds of different Zinnia hybrids on the market,
and more are being added each year.
These wide ranging hybrids include dwarf Zinnias that grow to no more than 12" tall
and produce 1-4" flowers in a rainbow of colors,
to immense 3 foot plants that are covered with massive 8", blood red blooms!
The dwarf varieties of Zinnias are well suited for growing in containers.
The taller varieties make excellent cut flower arrangements.

Growing Requirements for Zinnias

Zinnias should be planted 12-24" apart in rich, well drained garden soil.
They require full sun to bloom,
but will appreciate a little afternoon shade in the hottest regions.
Zinnias dislike having wet foliage, so if possible, they should be watered with a soaker hose.
Once established, your Zinnia will only need watering during extended periods of drought.
They should be planted where they have good air circulation to help prevent powdery mildew.
Feed every 4-6 weeks with a balanced, all purpose fertilizer.
Deadhead regularly to keep plants flowering until fall.

Growing Zinnia Plants from Seed

Double flowering Zinnias will often revert back to a single flowering plant if they are transplanted when young,
so these varieties should only be planted directly in the garden.
You can sow Zinnia seeds directly into the garden after all danger of frost has passed.
Sow your seeds about 12" apart and cover them with ¼" of fine soil. Firm lightly and keep evenly moist.

Seeds can be sown indoors four weeks prior to planting outdoors.
Maintain a temperature of 70°-75° within the growing medium.
Germination will only take from 5-7 days.
Pinch Zinnia plants to encourage branching, unless you are growing them exclusively for cut flowers and want long stems.
Zinnia elegans
A Bright Red Zinnia in Bloom, Zinnia elegans Bright Red Zinnias Blooming in the Garden A Dark Pink Zinnia Flower

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