How to Plant and Grow Cornflower

What You'll Need
Cornflower seeds
Table-top greenhouse
Dehydrated Soil Pellets
Watering Can

Cornflower is a tiny annual plant. The Cornflower promotes beautiful blue flowers. The cornflower general grows 40-90 centimeters tall. It boasts pretty grey-green stems. The cornflower originally started out as a wildflower, growing among weeds and different crop fields. It has recently been introduced to the common gardener as a must-have annual plant. Here is a handy how-to step process on planting and growing Cornflowers right in your backyard gardens.

Step 1 – Indoor Greenhouse

Before you plant your cornflowers into your garden, start them indoors. 4 to 6 weeks before you plan to plant your outdoor garden, germinate your Cornflower seeds indoors. Unpack your table-top greenhouse (plastic flat) and soil pellets. Place your dehydrated soil pellets in the individual containers. To expand the dehydrated soil, apply warm water. The soil should easily triple in size. 

Sow 2 to 3 seeds in the middle of the expanded soil pellets. Since the soil pellets are in individual spaces, you do not need to worry about proper spacing. Cover the seeds with at least a half of an inch of soil. Water well, until the soil is a rich dark brown.

Cover the bottom of your table-top greenhouse with the plastic cover. Make sure it fits firmly in place. Move your table-top greenhouse to a dark area. This allows for great germination. Keep the temperature at a constant 60 to 70 degrees.

Once the small cornflower seeds sprout (this happens in approximately 10 to 14 days after planting), place the table top greenhouse in a warm, sunny location. If getting natural light into your home is a problem, invest in grow lights. Place the grow lights slightly over the emerging cornflower seedlings.

Remember to keep the soil moist at all times. The soil should never be over watered. The soil should be damp to touch and should look like a dark, rich brown color. 

As the cornflower seedlings grow, you may end up with more than one plant in a space or pot (remember, you planted 2 to 3 seeds per space). Thin your pot out using your fingers or by using a pair of small scissors. When thinning your pots, choose the healthiest, straightest and strongest cornflower plant as the surviving plant. 

Fertilize your small cornflower plants well once they approach 2 weeks old. Use any common flower and vegetable fertilizer. We recommend using a fertilizer made for baby plants.

Step 2 - Transplant Your Cornflower Plants

A week before transplanting your cornflower plants, start to expose your plants to the outdoors during the daylight hours. Put your plants outside after sunrise and take them in after sunset. 

Between 4 and 6 weeks, transplant your new cornflower plants outside. Make sure there is no danger of frost. Make sure you plant your cornflowers in a well-drained garden that gets full to partial sun. Space your plants at least 12 inches apart in rows.