Growing Mums From Seed: A Complete Guide

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Want to add a burst of color to your garden? Growing mums from seed is a rewarding way to cultivate these vibrant flowers. While mums are often purchased as established plants, starting them from seed allows you to enjoy a wider variety of colors and forms. This comprehensive guide will walk you through each step, ensuring your success in growing mums from seed.

Why Grow Mums from Seed?

  • Variety: Seeds offer access to unique mum varieties not always available as plants.
  • Cost-Effective: Starting from seed is generally cheaper than buying established plants.
  • Satisfaction: There's immense satisfaction in nurturing a plant from its earliest stage.

Getting Started: What You'll Need

Before you begin, gather these essential supplies:

  • Mum Seeds: Purchase high-quality seeds from a reputable source.
  • Seed Starting Trays or Pots: These provide a controlled environment for germination.
  • Seed Starting Mix: A fine, sterile mix prevents disease and aids seedling growth.
  • Watering Can or Spray Bottle: For gentle watering.
  • Grow Lights (Optional): To supplement light, especially during early spring.

Step-by-Step Guide to Growing Mums from Seed

1. Starting Seeds Indoors

Start mum seeds indoors 8-10 weeks before the last expected frost. This gives them a head start and protects them from harsh weather.

  • Sow Seeds: Sprinkle seeds lightly on the surface of the seed starting mix.
  • Cover Lightly: Gently press the seeds into the mix and cover with a very thin layer of vermiculite.
  • Water Gently: Moisten the soil using a spray bottle. Avoid overwatering.
  • Provide Light: Place trays under grow lights or in a sunny window. Mums need plenty of light to germinate.
  • Maintain Temperature: Keep the soil temperature between 70-75°F (21-24°C).

2. Germination

Mum seeds typically germinate in 10-14 days. Keep the soil consistently moist during this period.

  • Monitor Moisture: Check the soil daily and mist as needed.
  • Ensure Air Circulation: Good airflow prevents fungal diseases.

3. Transplanting Seedlings

Once seedlings have developed their first set of true leaves, they are ready to be transplanted into individual pots.

  • Prepare Pots: Fill small pots with a good-quality potting mix.
  • Carefully Remove Seedlings: Gently lift seedlings from the tray, being careful not to damage the roots.
  • Plant Seedlings: Place each seedling in its own pot, ensuring the top of the root ball is level with the soil surface.
  • Water Thoroughly: Water the transplanted seedlings gently.

4. Hardening Off

Before transplanting mums outdoors, they need to be hardened off to acclimate them to outdoor conditions. This process takes about a week.

  • Gradual Exposure: Start by placing the seedlings outdoors in a sheltered location for a few hours each day.
  • Increase Time: Gradually increase the amount of time they spend outside each day.
  • Monitor Weather: Protect seedlings from extreme temperatures, wind, and direct sunlight during the hardening-off process.

5. Planting Outdoors

After hardening off, your mum seedlings are ready to be planted in your garden.

  • Choose Location: Select a sunny location with well-drained soil.
  • Prepare Soil: Amend the soil with compost or other organic matter.
  • Plant Seedlings: Space the seedlings about 18-24 inches apart.
  • Water Well: Water thoroughly after planting.

Caring for Your Mums

Watering

Mums need consistent moisture, especially during hot weather.

  • Water Deeply: Water deeply at the base of the plant, avoiding wetting the foliage.
  • Monitor Soil Moisture: Check the soil regularly and water when the top inch feels dry.

Fertilizing

Regular fertilization encourages healthy growth and abundant blooms.

  • Balanced Fertilizer: Use a balanced fertilizer (10-10-10) every 2-3 weeks during the growing season.
  • Avoid Over-Fertilizing: Too much fertilizer can lead to leggy growth and fewer flowers.

Pruning and Deadheading

Pruning and deadheading help maintain the shape of the plant and encourage more blooms.

  • Pinch Back: Pinch back the tips of the stems in early summer to promote bushier growth.
  • Deadhead Regularly: Remove spent flowers to encourage continuous blooming.

Pest and Disease Control

Monitor your mums for common pests and diseases.

  • Common Pests: Aphids, spider mites, and caterpillars.
  • Common Diseases: Powdery mildew and fungal leaf spots.
  • Treatment: Use appropriate insecticides or fungicides as needed, following label instructions carefully.

Enjoying Your Homegrown Mums

Growing mums from seed is a rewarding experience that brings vibrant color and beauty to your garden. With the right care and attention, you can enjoy these stunning flowers throughout the fall season. Whether you're a seasoned gardener or a beginner, growing mums from seed is a project worth undertaking.

Call to Action: Start planning your mum garden today! Order your seeds and prepare your soil for a spectacular display of color this fall.