General Information

• Scroll down or click on any month for plant care instructions
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October

  January 1. Propagate Start seeds indoors.

  February 1. Buy Dahlia tubers come into the nurseries in the late winter to spring. Buy them when you see the varieties you like. 2. Propagate Start seeds indoors.

  March 1. Buy Dahlia tubers come into the nurseries in the late winter to spring. Buy them when you see the varieties you like. 2. Plant Plant when danger of frost is past and the soil has warmed. About two weeks prior to planting, prepare soil by digging to about one foot and incorporating organic matter and fertilizer. Insert stakes for tall varieties. 3. Sow Seeds While most people plant tubers, you can sow seed. Start seeds early indoors. Wait until after danger of frost is past to transplant seedlings in the garden. 4. Fertilize Use about 1/4 cup low nitrogen fertilizer in the planting hole when you put in the plant. As dahlias are grown seasonally, they need to have the fertilizer readily available to the roots. 5. Water Dahlias need regular water throughout the growing season. 6. Prune Especially on tall dahlias, thin or pinch back all but the one or two strongest shoots when plant is young for best blossoms. 7. Mulch Use mulch to retain moisture around the roots. Best if applied just after transplanting. or when the plants begin to grow. 8. Transplant Transplant seed grown plants after danger of frost when plant is no less than 4 inches tall. 9. Propagate Start seeds indoors.

  April 1. Buy Dahlia tubers come into the nurseries in the late winter to spring. Buy them when you see the varieties you like. 2. Plant Plant when danger of frost is past and the soil has warmed. About two weeks prior to planting, prepare soil by digging to about one foot and incorporating organic matter and fertilizer. Insert stakes for tall varieties. 3. Sow Seeds While most people plant tubers, you can sow seed. Start seeds early indoors. Wait until after danger of frost is past to transplant seedlings in the garden. 4. Fertilize Use about 1/4 cup low nitrogen fertilizer in the planting hole when you put in the plant. As dahlias are grown seasonally, they need to have the fertilizer readily available to the roots. 5. Water Dahlias need regular water throughout the growing season. 6. Prune Especially on tall dahlias, thin or pinch back all but the one or two strongest shoots when plant is young for best blossoms. 7. Mulch Use mulch to retain moisture around the roots. 8. Transplant Transplant seed grown plants after danger of frost when plant is no less than 4 inches tall.

  May 1. Buy Dahlia tubers come into the nurseries in the late winter to spring. Buy them when you see the varieties you like. 2. Plant Plant when danger of frost is past and the soil has warmed. About two weeks prior to planting, prepare soil by digging to about one foot and incorporating organic matter and fertilizer. Insert stakes for tall varieties. 3. Sow Seeds While most people plant tubers, you can sow seed. Start seeds early indoors. Wait until after danger of frost is past to transplant seedlings in the garden. 4. Fertilize Use about 1/4 cup low nitrogen fertilizer in the planting hole when you put in the plant. As dahlias are grown seasonally, they need to have the fertilizer readily available to the roots. 5. Water Dahlias need regular water throughout the growing season. 6. Prune Especially on tall dahlias, thin or pinch back all but the one or two strongest shoots when plant is young for best blossoms. 7. Mulch Use mulch to retain moisture around the roots. 8. Transplant Transplant seed grown plants after danger of frost when plant is no less than 4 inches tall.

  June 1. Water Dahlias need regular water throughout the growing season. 2. Mulch Use mulch to retain moisture around the roots.

  July 1. Water Dahlias need regular water throughout the growing season. 2. Mulch Use mulch to retain moisture around the roots.

  August 1. Water Dahlias need regular water throughout the growing season. 2. Mulch Use mulch to retain moisture around the roots.

  September 1. Water Dahlias need regular water throughout the growing season. 2. Propagate Dig tubers after plant has died back for the season. Store in a cool, dry place, divide to individual tubers before planting.

  October 1. Propagate Dig tubers after plant has died back for the season. Store in a cool, dry place, divide to individual tubers before planting.

• Buy When's the best time to buy this plant? When can you buy these from seed (if you can)? When is it usually available? What are things to look for when you're buying it? Or anything other tidbit of information you can share! February Dahlia tubers come into the nurseries in the late winter to spring. Buy them when you see the varieties you like. March Dahlia tubers come into the nurseries in the late winter to spring. Buy them when you see the varieties you like. April Dahlia tubers come into the nurseries in the late winter to spring. Buy them when you see the varieties you like. May Dahlia tubers come into the nurseries in the late winter to spring. Buy them when you see the varieties you like.

  Plant When's a good time to plant this plant or bulb? Any special planting instructions? March Plant when danger of frost is past and the soil has warmed. About two weeks prior to planting, prepare soil by digging to about one foot and incorporating organic matter and fertilizer. Insert stakes for tall varieties. April Plant when danger of frost is past and the soil has warmed. About two weeks prior to planting, prepare soil by digging to about one foot and incorporating organic matter and fertilizer. Insert stakes for tall varieties. May Plant when danger of frost is past and the soil has warmed. About two weeks prior to planting, prepare soil by digging to about one foot and incorporating organic matter and fertilizer. Insert stakes for tall varieties.

  Sow Seeds When can you plant these seeds? When's the best time? Can you start them indoors and move them out? Do they have any special requirements? March While most people plant tubers, you can sow seed. Start seeds early indoors. Wait until after danger of frost is past to transplant seedlings in the garden. April While most people plant tubers, you can sow seed. Start seeds early indoors. Wait until after danger of frost is past to transplant seedlings in the garden. May While most people plant tubers, you can sow seed. Start seeds early indoors. Wait until after danger of frost is past to transplant seedlings in the garden.

  Fertilize When should you fertilize this plant? Which kind of fertilizer do you recommend? Should you use different fertilizers at different times of year? March Use about 1/4 cup low nitrogen fertilizer in the planting hole when you put in the plant. As dahlias are grown seasonally, they need to have the fertilizer readily available to the roots. April Use about 1/4 cup low nitrogen fertilizer in the planting hole when you put in the plant. As dahlias are grown seasonally, they need to have the fertilizer readily available to the roots. May Use about 1/4 cup low nitrogen fertilizer in the planting hole when you put in the plant. As dahlias are grown seasonally, they need to have the fertilizer readily available to the roots.

  Water Is there a time to reduce or increase watering? Any special requirements? Things to avoid during certain times of the year? March Dahlias need regular water throughout the growing season. April Dahlias need regular water throughout the growing season. May Dahlias need regular water throughout the growing season. June Dahlias need regular water throughout the growing season. July Dahlias need regular water throughout the growing season. August Dahlias need regular water throughout the growing season. September Dahlias need regular water throughout the growing season.

  Prune When's a good time to prune this plant? How about deadheading, pinching back, trimming or any other grooming? Any special requirements? March Especially on tall dahlias, thin or pinch back all but the one or two strongest shoots when plant is young for best blossoms. April Especially on tall dahlias, thin or pinch back all but the one or two strongest shoots when plant is young for best blossoms. May Especially on tall dahlias, thin or pinch back all but the one or two strongest shoots when plant is young for best blossoms.

  Mulch Does this plant need to be mulched? Are there specific types of Mulch which are better for this plant? How much? March Use mulch to retain moisture around the roots. Best if applied just after transplanting. or when the plants begin to grow. April Use mulch to retain moisture around the roots. May Use mulch to retain moisture around the roots. June Use mulch to retain moisture around the roots. July Use mulch to retain moisture around the roots. August Use mulch to retain moisture around the roots.

  Transplant When's the best time to dig up and transplant this from one spot to another? (This is different than planting). Any special requirements? March Transplant seed grown plants after danger of frost when plant is no less than 4 inches tall. April Transplant seed grown plants after danger of frost when plant is no less than 4 inches tall. May Transplant seed grown plants after danger of frost when plant is no less than 4 inches tall.

  Propagate When's a good time to divide, take cuttings, layer or propagate this plant. Any special requirements? January Start seeds indoors. February Start seeds indoors. March Start seeds indoors. August Dig tubers after plant has died back for the season. Store in a cool, dry place, divide to individual tubers before planting. September Dig tubers after plant has died back for the season. Store in a cool, dry place, divide to individual tubers before planting. October Dig tubers after plant has died back for the season. Store in a cool, dry place, divide to individual tubers before planting.