How tall do Oklahoma salmon zinnias grow?

Growing Instructions for Oklahoma Salmon Zinnias:

To successfully grow Oklahoma Salmon Zinnias, it is recommended to start the seeds indoors about 4 weeks before the last spring frost. This will give them enough time to establish and grow before being transplanted outdoors. However, if you prefer, you can also directly sow the seeds into the garden after the threat of frost has passed.

Starting the seeds indoors allows you to have more control over the growing conditions and ensure a higher germination rate. You can use seed starting trays or pots filled with a good quality seed starting mix. Sow the zinnia seeds about 1/4 inch deep and lightly cover them with soil. Keep the soil evenly moist, but not waterlogged, and place the trays or pots in a warm and well-lit area.

Once the danger of frost has passed and the seedlings have grown to a suitable size, they can be transplanted into the garden. Harden off the seedlings by gradually exposing them to outdoor conditions over a period of a week or two. This helps them acclimate to the changes in temperature and sunlight.

When transplanting, choose a location that receives full sun for at least 6-8 hours a day. Prepare the soil by loosening it and adding organic matter, such as compost, to improve drainage and fertility. Space the zinnia plants about 12-18 inches apart, as they can grow quite bushy and need room to spread out.

If you prefer to directly sow the seeds outdoors, wait until after the threat of frost has passed and the soil has warmed up. Prepare the soil by removing any weeds or debris and loosening it. Scatter the zinnia seeds on the soil surface, aiming for a spacing of about 12-18 inches between plants. Gently press the seeds into the soil, but do not cover them completely, as zinnias require light to germinate.

Maintain consistent moisture in the soil during the germination period, which usually takes around 7-10 days. Once the seedlings emerge, thin them out to the desired spacing, allowing the strongest plants to thrive.

Oklahoma Salmon Zinnias are known to grow to a height of 2-3 feet. However, this can vary depending on the growing conditions, such as available sunlight, soil fertility, and water availability. Some plants may grow slightly taller or shorter, but generally, you can expect them to reach a moderate height.

Regularly water the zinnias, aiming to keep the soil evenly moist but not waterlogged. Mulching around the plants can help retain moisture and suppress weed growth. Deadhead the spent flowers to encourage continuous blooming throughout the season.

Zinnias are generally easy to grow and are known for their vibrant colors and ability to attract pollinators like butterflies and bees. Enjoy the beauty they add to your garden and take pride in growing these lovely flowers.

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Caroline Bates

Caroline is a Miami-based landscaper who specializes in drought-tolerant landscapes. She is the mother of two young children and also enjoys writing for GreenPacks.org in her spare time. Caroline takes great pride in her work, and loves being able to share her knowledge with others through her writing.