The highest average temperature in Fort Collins is July at 74.3 degrees. The coldest average temperature in Fort Collins is December at 24.9 degrees. The most monthly precipitation in Fort Collins occurs in July with 4.5 inches. The Fort Collins weather information is based on the average of the previous 3-7 years of data. Loading...
Set the seed flat in a warm, brightly lit area out of direct sun. The best temperature for successful germination is between 68 and 86 degrees F. The top of your refrigerator or above a hot water heater are good locations provided there is enough light available. Your portulaca seeds will germinate in 10 to 15 days.tep 2. Sow a single portulaca seed in the center of the soil in each cell of the flat. Don't cover the seeds with soil because they require plenty of light for germination.
Iâm germinating a plug flat right now. The first seeds germinated in 7 days. At 21 days seeds are still coming up. It can take as long as 6 weeks or more for all of the seeds to come up. The minimum germination standard is 60%. Most varieties will germinate at 80+% and higher. I prechill the seeds in a refrigerator prior to shipping. Itâs best to store them in a refrigerator if there will be a delay in sowing. They should be frozen for 3-4 weeks as mentioned above before seeding.