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Agastache, Rose Mint

Short Description

Minty scent accents lavender-rose blooms and gray-green foliage.

Full Description

The free-flowering tall spikes are arrayed in lavender-rose blooms and fragrant, gray-green foliage with dark stems. It's terrific as cut flowers and a popular variety with hummingbirds.
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Item#: 38227A
Order: 1 Pkt. (50 seeds)
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$4.95
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Product properties

Zone This refers to the USDA hardiness zone assigned to each part of the country, based on the minimum winter temperature that a region typically experiences. Hardiness zone ranges are provided for all perennial plants and you should always choose plants that fall within your range.

7-9

Sun The amount of sunlight this product needs daily in order to perform well in the garden. Full sun means 6 hours of direct sun per day; partial sun means 2-4 hours of direct sun per day; shade means little or no direct sun.

Full Sun

Height The typical height of this product at maturity.

24 inches

Spread The width of the plant at maturity.

10-14 inches

Bloom Season The time of the year when this product normally blooms.

Fall, Summer

Resistant To Adverse garden conditions, such as heat or frost, deer or rabbits, that this product can tolerate well.

Deer, Drought, Heat

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Video

Introduction to Perennials
Perennials return year after year blooming on their own. Watch this introduction and discover how easy and rewarding growing perennials can be.
Watch video
Perennials Tour #1
Take a garden tour and see favorite perennial plants in a garden setting. In this video- Shasta Daisy, Ornamental Grass, Butterfly Bush, Echinacea and Hydrangea.
Watch video

How to Sow and Plant

Agastache may be grown from seed sown early indoors and transplanted outside after frost, sown directly in the garden in summer, or grown from potted plants.

Sowing Seed Indoors:

  • Sow seeds indoors 6-8 weeks before last spring frost date
  • Sow ¼ inch deep in seed-starting formula.
  • Keep the soil moist at 70-75 degrees F
  • Seedlings emerge in 14-21 days
  • As soon as seedlings emerge, provide plenty of light on a sunny windowsill or grow seedlings 3-4 inches beneath fluorescent plant lights turned on 16 hours per day, off for 8 hours at night. Raise the lights as the plants grow taller. Incandescent bulbs will not work for this process because they will get too hot. Most plants require a dark period to grow, do not leave lights on for 24 hours.
  • Seedlings do not need much fertilizer, feed when they are 3-4 weeks old using a starter solution (half strength of a complete indoor houseplant food) according to manufacturer’s directions.
  • If you are growing in small cells, you may need to transplant the seedlings to 3 or 4 inch pots when seedlings have at least 2 pairs of true leaves before transplanting to the garden so they have enough room to develop strong roots
  • Before planting in the garden, seedling plants need to be “hardened off”. Accustom young plants to outdoor conditions by moving them to a sheltered place outside for a week. Be sure to protect them from wind and hot sun at first. If frost threatens at night, cover or bring containers indoors, then take them out again in the morning. This hardening off process toughens the plant’s cell structure and reduces transplant shock and scalding.

Sowing Directly in the Garden:

  • Sow in full sun after danger of frost or in late summer 12 weeks before the ground freezes.
  • Remove weeds and work organic matter into the top 6-8 inches of soil; then level and smooth.
  • Sow seeds evenly and thinly and cover with ¼ inch of fine soil.
  • Firm lightly and keep evenly moist.
  • Seedlings will emerge in 14-21 days.
  • Thin to at least 16 inches apart when seedlings have three sets of leaves.

Planting in the Garden:

  • Select a location in full sun with good rich moist organic soil. Agastache requires a well-drained soil.
  • Prepare the bed by turning the soil under to a depth of 6-12, inches removing any debris, and lightly raking as level as possible.
  • The addition of organic matter (leaf mold, compost, well-rotted manure) benefits all gardens and is essential in recently constructed neighborhoods.
  • Plant on a cloudy day or in late afternoon to reduce transplant shock.
  • Dig a hole for each plant large enough to amply accommodate the root ball.
  • Unpot the plant and gently loosen the root ball with your hands to encourage good root growth.
  • Place the top of the root ball even with the level of the surrounding soil. Fill with soil to the top of the root ball. Press soil down firmly with your hand.
  • Use the plant tag as a location marker.
  • Thoroughly water and apply a light mulch layer on top of the soil (1-2 inches) to conserve water and reduce weeds.

How to Grow

  • Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their germination.
  • Mulches also help retain soil moisture and maintain even soil temperatures. For perennials, an organic mulch of aged bark or shredded leaves lends a natural look to the bed and will improve the soil as it breaks down in time.  Always keep mulches off a plant’s stems to prevent possible rot.
  • Careful watering is essential in getting perennials off to a good start. Water thoroughly at least once a week to help new roots grow down deeply. Soil should be damp at about 1 inch below the soil surface. You can check this by sticking your finger in the soil. Water early in the morning to give all leaves enough time to dry.  One inch of rain or watering per week is recommended for most perennial plants. You can check to see if you need to add water by using a rain gauge.
  • Until plants become established, some protection from extreme winds and direct, hot sunlight may be necessary.  Good air movement is also important.
  • After new growth appears, a light fertilizer may be applied. Keep granular fertilizers away from the plant crown and foliage to avoid burn injury. Use low rates of a slow release fertilizer such as Garden-tone, as higher rates may encourage root rots.
  • “Deadhead”, remove spent flower heads to encourage continuous flowering and prevent seed development.
  • Remove and discard foliage after a hard frost in fall.
  • Agastache tends to be a short-lived perennial, but it will reseed where it is happy.

Growing Tips

  • Many gardeners do not cut back perennial flower seed heads in the fall, but wait until early spring before the new foliage appears. This provides food for wildlife over the winter.
  • For flower arranging, cut when blooms are 2/3 open.
  • Use anise-flavored leaves and flowers as a seasoning or to make a tea.
Zone
7-9
Sun
Full Sun
Height
24 inches
Spread
10-14 inches
Bloom Season
Fall, Summer
Resistant To
Deer, Drought, Heat
Ornamental Use
Beds, Cut Flowers
Planting Time
Fall, Spring
Genus
Agastache
Life Cycle
Perennial
Agastache, Rose Mint is rated 3.0 out of 5 by 4.
Rated 5 out of 5 by from Hearty seedling when planted outside This was my first attempt at growing from seeds and I now have 5 strong Agastache starts that we just planted in the ground. Very exciting for us! I just babied them and when it would downpour or it was going to be windy, I put them in a more protected area. After sunny and rainy days, they started growing and never stopped.
Date published: 2015-09-21
Rated 4 out of 5 by from Hardy, Pretty and Difficult to Start Seeding individually in cell packs indoors didn't work well. Most of the seeds germinated, but the seedlings were so delicate they died easily. So, I gave up and dumped 5-6 seeds into a small pot and left it outside. Sure enough, they all sprouted and grew in spite of substantial neglect and irregular watering. The plant survived winter on the deck with an occasional cover for freezing temperatures, and an unexpected hailstorm that decimated most of my plants barely harmed the Rose Mint. Earlier this spring, I transplanted it into the hottest, driest and sunniest spot in the garden. Right now, it's in full bloom and covered with butterflies. The deer have approached it several times and walked away every time without even taking a test bite. The tiny flowers are so delicate and pretty. They look beautiful mixed in with Mint Lemon and Anise Hyssop Blue. But for slow start, this is an excellent plant. It seems to adore being ignored and dehydrated, which is a huge plus during the summer.
Date published: 2015-05-06
Rated 1 out of 5 by from Rose Mint Agastache Terrible, not one seed came up
Date published: 2012-05-09
Rated 2 out of 5 by from so-so Only 6 germinated out of the entire pack of seeds. May have been a bad pack but that's pretty low regardless. All the other seeds I bought did as expected. I'll plant the ones I have in April and see how they do.
Date published: 2012-03-25
  • 2016-09-24T06:57CST
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