One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to figure out when it's the best time to plant dipladenia by referring to the USDA zone info for Victoria.

Planting Calendar for Dipladenia

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

Since dipladenia require warm weather it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant dipladenia in Victoria 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 dipladenia and expect a good harvest is probably September. If you wait any later than that and your dipladenia may not have a chance to fully mature. You can get started a little bit earlier by starting your dipladenia indoors.

Last Frost Date

The average date of last frost is February 15 in Victoria. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Victoria is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Victoria you get surprised by a frost after February 15 so be sure to be ready to protect your dipladenia if you have one of those late frosts.

USDA Zone Info for Victoria

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 Low	20°F
Highest Expected Low	25°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 Victoria

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