When is the best time to start our seeds?
Optimal Timing for Starting Your Seedlings
Determining the right time to start your seedlings is crucial for successful gardening and ensuring healthy plant growth. In North America, specific seeds benefit from an early start indoors, approximately 6-8 weeks before they are ready for transplantation into their designated spots in the garden. Some examples of these seeds include eggplants, hot and sweet peppers, gourds, tulsi, and tomatoes, among others.
To initiate indoor seedlings, it is essential to place them directly beneath bright but cool grow lights, preferably using fluorescent lamps. These lights provide the necessary intensity for the initial growth stages of the baby plants. However, it is important to ensure a gradual transition of the seedlings to the outdoors. Wait until well after the last spring frost before moving them outside. Initially, position the seedlings in a shaded area of your garden or on your deck to allow them to acclimate to the external conditions.
Only after the seedlings have successfully adapted to the outdoor environment should they be exposed to the direct sunlight in your garden. This careful approach will promote their healthy development and prevent any potential shock due to abrupt environmental changes.
On the other hand, some plant varieties are better off being directly sown in the garden rather than starting indoors. Peas and spinach, for instance, can be planted in the early stages of spring. For radishes, cabbage, cauliflower, coriander, and carrots, early spring is also an ideal time for direct sowing.
However, certain crops, including beans, corn, okra, gongura, Malabar spinach, melons, herbs, cucumbers, and squash, should be planted only after the last spring frost has passed. This delay ensures that the soil and weather conditions are optimal for their growth.
For crops like bush beans, there is some flexibility in planting time, as they can be sown as late as mid to late summer. This flexibility allows for staggered planting, which can be advantageous for extending the harvest season.
It's worth noting that certain vegetables such as cabbage, cauliflower, and spinach can be planted twice: once during the spring and again for a fall crop. Starting a fall crop in late summer provides an opportunity to enjoy these vegetables during the cooler months and ensures a continuous supply throughout the growing season.
By understanding the optimal timing for starting your seedlings and the appropriate planting methods for different crops, you can maximize your garden's productivity and savor a diverse array of fresh, homegrown produce throughout the year.
Courtesy: Old Farmers Almanac provides a guide for the first and last frost dates in the United States. Please note: this information is based on historical data and the exact days might defer while at the mercy of mother nature.
State |
City |
Growing Season (Days) |
Last Frost Spring |
First Frost Fall |
AK |
Juneau |
148 |
May 08 |
Oct 4 |
AL |
Mobile |
273 |
February 28 |
November 29 |
AR |
Pine Bluff |
240 |
March 16 |
November 12 |
AZ |
Phoenix |
* |
* |
* |
AZ |
Tucson |
324 |
Jan 19 |
December 18 |
CA |
Eureka |
323 |
January 27 |
December 16 |
CA |
Sacramento |
296 |
February 10 |
December 4 |
CA |
San Francisco |
* |
* |
* |
CO |
Denver |
157 |
April 30 |
October 4 |
CT |
Hartford |
166 |
April 26 |
October 9 |
DE |
Wilmington |
202 |
April 10 |
October 30 |
FL |
Miami |
* |
* |
* |
FL |
Tallahassee |
239 |
March 22 |
November 17 |
GA |
Athens |
227 |
March 24 |
November 7 |
GA |
Savannah |
268 |
March 1 |
November 25 |
IA |
Atlantic |
148 |
May 02 |
September28 |
IA |
Cedar Rapids |
163 |
April 25 |
October 6 |
ID |
Boise |
147 |
May 10 |
October 6 |
IL |
Chicago |
187 |
April 20 |
October 24 |
IL |
Springfield |
182 |
April 13 |
October 13 |
IN |
Indianapolis |
181 |
April 17 |
October 16 |
IN |
South Bend |
175 |
April 26 |
October 19 |
KS |
Topeka |
174 |
April 19 |
October 11 |
KY |
Lexington |
192 |
April 15 |
October 25 |
LA |
Monroe |
256 |
March 3 |
November 15 |
LA |
New Orleans |
300 |
February 12 |
December 11 |
MA |
Worcester |
170 |
April 26 |
October 14 |
MD |
Baltimore |
200 |
April 11 |
October 29 |
ME |
Portland |
156 |
May 2 |
October 6 |
MI |
Lansing |
145 |
May 10 |
October 3 |
MI |
Marquette |
154 |
May 11 |
October 13 |
MN |
Duluth |
124 |
May 21 |
September 23 |
MN |
Willmar |
154 |
April 30 |
October 1 |
MO |
Jefferson City |
188 |
April 13 |
October 18 |
MS |
Columbus |
248 |
March 13 |
November 16 |
MS |
Vicksburg |
240 |
March 20 |
November 16 |
MT |
Fort Peck |
141 |
May 8 |
September26 |
MT |
Helena |
121 |
May 19 |
September18 |
NC |
Fayetteville |
222 |
March 28 |
November 5 |
ND |
Bismarck |
129 |
May 14 |
September21 |
NE |
Blair |
167 |
April 25 |
October 10 |
NE |
North Platte |
137 |
May 9 |
September24 |
NH |
Concord |
124 |
May 20 |
September21 |
NJ |
Newark |
217 |
April 3 |
November 7 |
NM |
Carlsbad |
215 |
March 31 |
November 2 |
NM |
Los Alamos |
149 |
May 11 |
October 8 |
NV |
Las Vegas |
283 |
February 16 |
November 27 |
NY |
Albany |
153 |
May 2 |
October 3 |
NY |
Syracuse |
168 |
April 28 |
October 13 |
OH |
Akron |
192 |
April 18 |
October 28 |
OH |
Cincinnati |
192 |
April 13 |
October 23 |
OK |
Lawton |
223 |
March 29 |
November 7 |
OK |
Tulsa |
218 |
March 30 |
November 4 |
OR |
Pendleton |
187 |
April 13 |
October 18 |
OR |
Portland |
236 |
March 23 |
November 15 |
PA |
Franklin |
164 |
May 6 |
October 17 |
PA |
Williamsport |
168 |
April 30 |
October 15 |
RI |
Kingston |
147 |
May 8 |
October 3 |
SC |
Charleston |
260 |
March 9 |
November 25 |
SC |
Columbia |
214 |
April 1 |
November 1 |
SD |
Rapid City |
140 |
May 9 |
September27 |
TN |
Memphis |
235 |
March 22 |
November 13 |
TN |
Nashville |
204 |
April 6 |
October 28 |
TX |
Amarillo |
185 |
April 18 |
October 20 |
TX |
Denton |
243 |
March 18 |
November 16 |
TX |
San Antonio |
270 |
Feb 28 |
November 25 |
UT |
Cedar City |
133 |
May 21 |
October 1 |
UT |
Spanish Fork |
167 |
May 1 |
October 16 |
VA |
Norfolk |
247 |
March 20 |
November 23 |
VA |
Richmond |
206 |
April 6 |
October 30 |
VT |
Burlington |
147 |
May 8 |
October 3 |
WA |
Seattle |
251 |
March 10 |
November 17 |
WA |
Spokane |
153 |
May 2 |
October 3 |
WI |
Green Bay |
150 |
May 6 |
October 4 |
WI |
Sparta |
133 |
May 13 |
September24 |
WV |
Parkersburg |
183 |
April 21 |
October 22 |
WY |
Casper |
120 |
May 22 |
September19 |
* Frosts do not occur every year.
References:
- Smith, Jennifer. "Mastering Seedling Timing: The Ultimate Guide for High-Yield Gardens."
- Johnson, Robert. "Gardening Success: When and How to Start Seedlings for Optimal Growth."
- Thompson, Emily. "Seed Starting Secrets: Expert Tips for Healthy Transplants and Bumper Harvests."
- Wilson, David. "Maximizing Your Garden's Potential: Key Timing for Seedling Success."
- Brown, Sarah. "From Seed to Garden Glory: The Art of Perfect Seedling Timing."
- Miller, Michael. "Indoor Seed Starting Mastery: Unleashing the Potential of Your Garden."
- Davis, Laura. "Seedlings 101: A Comprehensive Guide to Ideal Planting Times."
- Robinson, Mark. "Seeds of Success: Unlocking the Secrets of Perfect Seedling Timing."
- Martinez, Maria. "The Power of Precise Timing: Growing Abundant Gardens with Seedlings."
- Lee, Christopher. "Garden Growth Hacks: Mastering the Art of Seedling Timing for High Yield."