Marvelette Blue Calamintha blooms on a white background.
Marvelette Blue Calamintha growing in garden.
Marvelette Blue Calamintha blooms on a white background.
Marvelette Blue Calamintha growing in garden.

Calamintha Seeds,
Marvelette Blue

51 Review#HB333 · 25 seeds
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Description

(Calamintha nepeta) The fantastic minty, floral fragrance will permeate your senses wherever Marvelette Blue is planted! The compact, bushy plants with loose spikes of understated blue flowers emit a cool minty scent with a touch of rose. This makes a stunning herbal tea; you'll find yourself brewing cup after cup served hot or iced! Popular with a range of pollinators, especially butterflies. 8- to 10-inch-tall plants form tidy clumps; it is not an aggressive spreading perennial.

Plant Details

Botanical Name
Calamintha nepeta
Life Cycle
Perennial in zones 4–9
Growth Habit
Bush
Sun Requirement
6–12 hr.
Days to Germinate
7–21
Days to Maturity
84
Planting Depth
⅛ in.
Plant Spacing
12–18 in.
Ideal Temperature
60–70°F
Frost Hardy
Yes

Growing Guide

When to Grow

Start Marvelette Blue calamintha indoors in spring, 8-10 weeks before the last frost. The ideal temperature for germination is about 70 F. Seeds germinate in 7-21 days if grown in proper conditions. If you’re not sure how to find your first and last frost dates, consult our blog post 'Our Experts Answer Questions, Share Resources.'

How to Sow and Plant

Sow seeds about 1/8 inch deep in well-draining soil, and keep the soil moist until germination, which typically occurs within two weeks. Transplant seedlings when they are sturdy enough to handle, spacing them about 12-18 inches apart.

How to Grow

Once established, Marvelette Blue calamintha is relatively low-maintenance. It is drought-tolerant but performs best with consistent moisture, particularly during dry spells. It requires little to no fertilization; a balanced fertilizer in early spring can be applied if the soil is nutrient-deficient. The plant may spread by rhizomes, so monitor and control its growth as needed.

How to Save Seeds

  • Seeds are mature once the flower heads have fully dried and turned brown. To harvest them, cut the flower spikes and place them inside a paper bag. This allows the seeds to completely dry and drop; you may need to shake the bag gently to help loosen the seeds. Afterward, separate any chaff from the seeds and store them in a cool, dry place.
  • Many people prefer propagating calamintha plants through cuttings as it is generally easier than growing from seeds. Simply take a cutting from a healthy plant, remove the lower leaves, and place it in water until roots develop. Then, plant it in the soil.

FAQ

What type of soil does Marvelette Blue calamintha prefer?

It prefers well-drained, slightly alkaline to neutral soils.

How often should I water Marvelette Blue calamintha?

Water regularly until established, then water during prolonged dry periods.

Does Marvelette Blue calamintha require full sun?

It grows best in partial shade to full sun; however, in hotter climates partial shade might be a better fit.

Does Marvelette Blue calamintha spread aggressively?

No. Unlike the true mints, Calamintha nepeta forms tidy 8- to 10-inch clumps and is not an aggressive spreader; it self-sows lightly at most, and deadheading limits that.

Browse our full range of mint seeds.

Customer reviews

5 / 5 1 Review

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