
Spanish Needles
Bidens bipinnata
Grow Time
60-90 days
Sunlight
Full Sun to Partial Shade
Watering
Every 5-7 days
Toxicity
Non-toxic
How to plant Spanish Needles: Step-by-Step Guide
Growing Guide
Preparation
Choosing Spanish Needles: Spanish Needles are a lovely, low-maintenance plant perfect for beginners. These wildflowers can grow in almost any garden and are great for attracting pollinators like bees and butterflies. You can start with seeds, which are easy to find online or at garden centers.
Best Time to Plant: Spanish Needles thrive in warm weather. The best time to sow the seeds is in late spring after the last frost has passed. If you live in a warmer climate, you can also plant them in early fall.
Tools and Materials You’ll Need:
- Spanish Needle seeds
- A patch of soil or large pot (at least 12 inches wide)
- Basic garden soil (they aren’t picky, so regular soil works fine)
- Watering can or hose
- Sunny or partially shaded spot
Tip: Spanish Needles are hardy and don’t require rich soil, so don’t worry too much about preparing the soil—just make sure it’s not waterlogged!
Planting

How to Plant Spanish Needle Seeds:
- Prepare the Soil: Clear the area of weeds or debris, but you don’t need to do anything fancy. Just loosen the top layer of soil with a small rake or your hands.
- Sow the Seeds: Sprinkle the seeds over the soil. You don’t need to bury them deep—just press them lightly into the surface or cover them with a thin layer of soil (about ¼ inch).
- Water Gently: After sowing, give the area a light watering. Keep the soil moist but not soaking wet.
- Spacing: If you’re planting in a garden bed, space the seeds about 6-12 inches apart. If you’re using pots, one or two plants per large pot will do just fine.
Tip: Since Spanish Needles spread easily, they’re perfect for filling in empty spaces in your garden. Just be mindful that they can take over if not kept in check!
Growing Care




Sunlight Needs: Spanish Needles love sunlight but can tolerate partial shade. Aim for at least 4-6 hours of direct sunlight daily. If you notice the plants getting leggy, they might need more sun.
Watering Routine: These plants are pretty drought-tolerant, but they grow best when watered regularly. Water them once or twice a week, depending on how dry the soil feels. Stick your finger into the soil—if the top inch feels dry, it’s time to water.
Fertilizing: Good news—you don’t need to fertilize Spanish Needles! They grow well without extra feeding, but if you want to give them a little boost, use a general-purpose fertilizer once a month.
Pruning and Deadheading: To keep your Spanish Needles looking tidy and to encourage more blooms, pinch off the dead flowers. This also helps prevent them from spreading too much, as the plant tends to self-seed prolifically.
Tip: Be careful when handling the seed heads—they have tiny barbs that can stick to your clothes or pets. Wear gloves when pruning or deadheading!
Harvesting

When to Harvest: Spanish Needles are primarily grown for their beauty and ability to attract pollinators, but you can also harvest the seeds for future planting. Wait until the flower heads turn brown and dry out—this usually happens in late summer or early fall.
How to Harvest Seeds:
- Cut the dried flower heads and place them in a paper bag.
- Shake the bag gently to release the seeds.
- Store the seeds in a cool, dry place until you’re ready to plant them again.
Using the Plant: While Spanish Needles are mostly ornamental, some people use the leaves in teas or as part of herbal remedies (though always consult an expert before trying this). The flowers are also great for bouquets!
Tip: If you don’t want the plant to spread too much, remove the seed heads before they fully mature.
Plant Care FAQ
Q: Are Spanish Needles invasive?
A: They can be if left unchecked! Spanish Needles self-seed very easily, so if you don’t want them spreading all over your garden, remove the dried seed heads before they drop seeds.
Q: My Spanish Needles look leggy—what should I do?
A: Leggy plants usually mean they’re not getting enough sunlight. Try moving them to a sunnier spot or prune them back to encourage bushier growth.
Q: Why are my Spanish Needles wilting?
A: Wilting could be due to either too much or too little water. Check the soil—if it’s soggy, cut back on watering; if it’s dry, water more frequently.
Q: Can Spanish Needles grow indoors?
A: While they prefer outdoor conditions, you can grow them indoors in a sunny window. However, they may not thrive as well inside because they love plenty of fresh air and natural sunlight.
Q: Do Spanish Needles attract pests?
A: Fortunately, they don’t attract many harmful pests, but they do attract beneficial insects like bees and butterflies, which help pollinate your garden.
Pro Tips
1. Companion Planting
Spanish Needles work well as companion plants for vegetables like tomatoes and peppers because they attract pollinators, which can improve your vegetable yield.2. Natural Mulch
As Spanish Needles grow, they can act as a living mulch by shading the soil and helping retain moisture. Let them spread a bit around other plants!3. Wildlife Friendly
If you enjoy birdwatching, let some of the seeds mature and dry on the plant. Birds love eating the seeds!4. Prevent Sticking
To avoid the sticky seed heads attaching to your clothes or pets, plant them away from high-traffic areas or walkways.5. Low-Maintenance Beauty
Spanish Needles are perfect for beginner gardeners or those who want a beautiful garden without much fuss. They’re drought-tolerant and don’t need fertilizers.6. Cut-and-Come-Again
Regularly cutting back the plant encourages new growth and more flowers throughout the season.7. DIY Seed Packets
Once you’ve harvested the seeds, store them in small envelopes or jars for next season—or share them with friends who might want to grow their own!