Spinach seeds like to be planted 1/2 inch deep, and with about 6-8 inches between plants. The slowest seeds to germinate are pepper, eggplant, fennel, celery, which may take 5+ days. You can begin germination of spinach seeds indoors about four weeks before the final frost in your area, or, start them in the fall when temperatures are starting to cool down. Spinach is grown from seeds or transplants. As the weather warms in spring, you can direct-sow a second planting. Thin the spinach seedlings when the spinach plants reach 1 inch in height.

Spinach seeds also have a lower-than-average germination rate, so make sure you overplant, and then thin if necessary. Keep the soil evenly moist while the spinach seeds germinate by watering gently to avoid disrupting the seeds in the soil. Sow seed ½ inch (13mm) deep. Controls for this experiment consisted of uninoculated seeds undergoing similar treatment using sterile water. If the soil it … Scarify the seed with a file, sandpaper or even a knife to speed germination, which will take 3 weeks or longer at temperatures between 65-75°F. Malabar spinach plant is a climbing plant and it grows best in full sun. Cover the seeds with 1/2 inch of soil and water the soil lightly immediately after planting. Spinach seeds germinate faster with optimal soil temperature, humidity, and air circulation. Seeds that are Difficult to Germinate .

The rest such as tomato, beets, chard, squash, onions, will take about 3 days. Plant twice as many seeds …

Keep in mind that you may want to soak your seeds before planting to raise your germination rate.

Spinach seeds can take quite a while to germinate. Spinach seeds take 6 to 10 days to germinate. Spinach seed is viable for 3 years. Soak seeds overnight if they are large seeds like beans and peas. Can be started 2-3 weeks before last frost under glass for later transplanting. The fastest germinating seeds include everything in the cabbage family – bok choi, broccoli, kale, cauliflower etc, and lettuce. Do not start spinach seeds during the hot months of summer, because the plants quickly bolt when temperatures are over 75ºF (24ºC), producing a tall flower stalk, setting seed, and developing an unpleasant flavor. Oh boy, how I love to eat asparagus, but germinating this vegetable from seed is more than a little tricky. However, spinach seeds I've planted in garden potting soil have had the same germination and slow growth/wilting problems. Legume seeds should not be soaked so long that their seed coat splits. The washings from the seeds inhibited germination of de-coated spinach seeds at 30 when added to the germination dishes. Spinach produces beautifully in cool fall conditions, but it’s tricky to persuade the seed to germinate in the hot conditions of late summer. For proper germination, soil should not be warmer than 70ºF (21°C).

Spinach seeds germinate in a temperature range between 40º to 75ºF (4.4º to 23.9ºC), and the higher the temperature, the faster the seeds sprout. Soak the seeds for 12 hours in cold water.