Northern Tansy

Choosing Northern Tansy

Hello there, future gardener! Northern Tansy, also known as Tanacetum bipinnatum, is a lovely plant with a unique look and some interesting uses. It’s not as common in gardens as tomatoes or peppers, but it's still easy to grow if you follow these steps.

Tip: If you’re buying seeds, check for reputable sources online or at your local nursery. You can also find young plants if starting from seed feels too tricky.

Timing

Northern Tansy prefers cooler climates, so the best time to plant is in early spring when the soil starts to warm up but before the summer heat kicks in. If you live in a colder region, you can start planting indoors about 4-6 weeks before the last frost.

Tools and Materials

Northern Tansy seeds or young plants

A pot (if growing indoors) or a garden bed

Regular potting soil or well-draining garden soil

Watering can or hose

• Sunny or partially shaded spot

Tip: This plant isn’t super picky about soil, but it does need good drainage to prevent root rot.

If Using Seeds:

1. Fill small pots or seed trays with moist soil.
2. Sprinkle the seeds on top of the soil—don’t bury them too deep; just press them lightly into the surface.
3. Water gently, keeping the soil moist but not soggy.
4. Place the pots in a cool, bright spot that gets some sunlight but not too much heat.
5. Seeds should sprout in about 7-14 days.
6. Once the seedlings are strong enough (usually after they have 2-3 sets of leaves), you can transplant them outside or into larger pots.

If Using Young Plants:

1. Dig a hole slightly larger than the root ball of the young plant.
2. Place the plant in the hole and cover the roots with soil, gently pressing it down.
3. Water thoroughly after planting to help the roots settle in.
4. Space the plants about 12 inches apart to give them room to grow.
5. Make sure they’re in a spot with partial shade to full sun—too much direct sunlight might scorch their leaves.

Tip: When transplanting, handle the roots carefully to avoid damaging them.

Sunlight Requirements

Northern Tansy likes a mix of sun and shade. Aim for a location where it gets morning sun and afternoon shade, especially if you live in a warmer climate. Too much harsh sunlight can dry out the leaves, so partial shade is ideal.

Watering Method

• Water regularly, but don’t overdo it! The soil should be moist, but not waterlogged.
• Check the soil every few days by sticking your finger into it—if the top inch feels dry, it’s time to water.
• Water at the base of the plant to avoid wetting the leaves, which can lead to mold or mildew.

Tip: In hotter weather, you might need to water more frequently, but always check the soil first.

Fertilizing Tips

• Northern Tansy doesn’t need heavy feeding, but a light application of an all-purpose fertilizer once a month can help keep it healthy.
• Dilute the fertilizer according to the package instructions, and apply it when the plant is actively growing.

Pruning and Maintenance

• Trim back any dead or yellowing leaves to encourage new growth.
• If the plant starts to get leggy, you can pinch back the tips to promote bushier growth.
• Deadheading spent flowers can also help the plant focus its energy on producing new blooms.

Tip: Prune lightly and avoid cutting too much at once, as this can stress the plant.

When to Harvest

Northern Tansy is primarily grown for its attractive foliage and flowers rather than edible parts, but you can harvest its leaves and flowers for decorative purposes or dried arrangements. The best time to do this is in late spring to early summer when the plant is in full bloom.

How to Harvest

• Use clean scissors or pruning shears to cut stems with fresh leaves or flowers.
• Cut just above a leaf node (the point where a leaf attaches to the stem) to encourage new growth.
• If you’re harvesting for drying, hang the stems upside down in a cool, dry place until they’re completely dry.

Tip: Always leave enough foliage on the plant so it can continue to photosynthesize and stay healthy.

Storage

• Dried leaves and flowers can be stored in airtight containers away from direct sunlight.
• Fresh-cut stems can be placed in water like flowers to enjoy indoors for a short period.

Tip: If you’re using Northern Tansy for crafts or decorations, bundle the dried stems together for wreaths or potpourri.

1. Yellow Leaves

Cause: Overwatering or poor drainage.

Solution: Check the soil moisture and adjust your watering schedule. Make sure the pot or garden bed has good drainage.

2. Wilting Plant

Cause: Underwatering or too much direct sunlight.

Solution: Increase watering frequency, especially during hot spells, and provide some shade during the hottest part of the day.

3. No Flowers

Cause: Insufficient sunlight or nutrient imbalance.

Solution: Ensure the plant is getting enough sunlight, ideally a mix of sun and shade. Consider a light application of fertilizer to boost blooming.

4. Leggy Growth

Cause: Not enough sunlight or overcrowding.

Solution: Move the plant to a sunnier spot or prune back some of the stems to encourage bushier growth.

5. Pests

Cause: Aphids or other small insects may occasionally bother Northern Tansy.

Solution: Rinse the plant with a gentle stream of water or use insecticidal soap if the infestation is severe.