The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In San Juan you can figure out when it's the best time to plant monkey flower by looking at the USDA zone info.

Planting Calendar for Monkey Flower

Frost tolerance for monkey flower:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's not a good idea to plant monkey flower until after the last frost has passed because they require warm weather.

The earliest that you can plant monkey flower in San Juan is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant monkey flower and expect a good harvest is probably September. If you wait any later than that and your monkey flower may not have a chance to fully mature. You can get started a few weeks earlier by starting your monkey flower indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in San Juan. It might get as low as 25°F during the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for San Juan and it can change quite a bit from year to year. Half of the time in San Juan you get surprised by a frost after February 15 so make sure that you are prepared to cover your monkey flower if you have one of those late frosts.

USDA Zone Info for San Juan

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in San Juan

You may be interested in your other planting guides for San Juan.