When to Plant Tropical Water Plants in Seaside, OR

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Seaside it's possible to determine when to plant tropical water plants.


Planting Calendar for Tropical Water Plants

Frost tolerance for tropical water plants: Not tolerant of frost.
When to plant: After the last frost has passed.

Tropical Water Plants are not cold tolerant which means that you must wait until it warms up after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant tropical water plants
Possibly ok, but a risky time to plant tropical water plants
Probably not a good time to plant tropical water plants

The earliest that you can plant tropical water plants in Seaside 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 tropical water plants and expect a good harvest is probably September. Any later than that and your tropical water plants may not have a chance to fully mature. If you are starting your tropical water plants indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Seaside. In the coldest months of winter you should expect an average low temperature of 20°F.

Just be sure to remember that USDA zone info for Seaside is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Seaside last frost occurs after February 15 so make sure that you are ready to protect your tropical water plants in the event of a surprise late frost.

USDA Zone Info for Seaside

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low20°F
Highest Expected Low25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Seaside

You may be interested in your other planting guides for Seaside.