Do you want to originate sunflower in Rhode Island , but do n’t know when to institute them ?
Planting helianthus is not as easy as it seems .
Here ’s why :

So if you plant them alfresco too ahead of time in the springiness they will pop off . And if you plant them too recently , your helianthus wo n’t grow a bloom .
Today , I ’m going to teach you the ideal time to plant helianthus in Rhode Island :
When to Plant Sunflower in Rhode Island
As you may have already estimate , you take to pay very close attention to your local weather in the spring . Specifically , you are go to take to see when the last frost go on .
In general , when there has n’t been a frost for two weeks , you are SAFE to institute your sunflower outside in Rhode Island !
For your reference , I have create this table for average frost dates for most major metropolis in Rhode Island . If your city is not heel below you may find its Last & First Frost DatesHERE .

Rhode Island Last & First Frost Dates
regrettably , Mother Nature roleplay vicious caper on us every twelvemonth .
It should be remark that the above date are just averages .
There are years when the last frost comesMUCHlater . Sometimes , the last Robert Lee Frost go on much sooner and you’re able to get your helianthus planted outside in Rhode Island much quick .

Like I said before , you necessitate to be very persevering in check your local weather .
So what happen if a frost comes AFTER you plant your sunflower ?
When you have it away a icing is coming you need to take activity .
Also , ensure not to found your helianthus in your garden too of late .
When Should You Start Your Sunflower Seeds Indoors?
look on the type of sunflower , it takes roughly 10 to 14 days to develop sunflower from ejaculate indoors and then transplant them to your garden . And then another 12 to 18 weeks to flower !
For aspecific datethat you should start helianthus seed indoors you should :
Not only this , but I recommend again paying close attending to your local weather report .
It should also be noted that the best technique for bringing your helianthus plants out of doors is to introduce them ( in their pots ) outside for an hour . And then increase the amount of sentence they pass outside each Clarence Day by an hour until they have been outdoors for 8 hours .
This will “ inure ” your sunflower plant , increasing its chances of fighting off disease , insects , droughts , and wet conditions .
If you need to learnWHENto plantANYFlower in Rhode Island , head over toHEREand just type in the flower you require to grow .