Grow Nasturtiums Indoors: Your Complete Guide

Hey there, plant lovers! Are you looking to add a splash of color and a dash of spice to your indoor garden? Then you've come to the right place! Today, we're diving deep into the wonderful world of nasturtiums, those vibrant and versatile plants that not only look beautiful but are also edible. Yes, you heard that right – you can eat the leaves and flowers! So, if you're itching to grow these beauties indoors, keep reading because we're about to spill all the secrets.

Why Grow Nasturtiums Indoors?

So, why should you consider growing nasturtiums indoors? Well, there are tons of reasons! First off, nasturtiums are typically summer and fall bloomers, but by growing them indoors, you can enjoy their cheerful flowers and peppery leaves year-round. Imagine having fresh, edible flowers to garnish your salads even in the dead of winter – pretty cool, right?

Beyond the seasonal aspect, growing nasturtiums indoors allows you to have more control over their environment. You can regulate the temperature, light, and watering schedule, ensuring your plants thrive. This is especially beneficial if you live in an area with harsh winters or scorching summers. Plus, let's be honest, having a little bit of greenery indoors can do wonders for your mood and overall well-being. It's like bringing a little slice of nature into your home.

Another great reason to grow nasturtiums indoors is their versatility. They can be grown in hanging baskets, pots, or even trained to climb trellises, making them a perfect fit for any indoor space. And did I mention they're relatively low-maintenance? Yep, nasturtiums are pretty forgiving, making them a great choice for both beginner and experienced gardeners alike. Plus, they attract beneficial insects like bees and butterflies if you decide to move them outdoors during the warmer months. It's a win-win!

Finally, let's not forget about the culinary aspect. Nasturtium leaves have a peppery flavor, similar to watercress, and the flowers have a slightly sweeter, more delicate taste. You can add them to salads, sandwiches, soups, or even use them as a garnish. They're not only delicious but also packed with vitamins and minerals. So, you're not just growing a beautiful plant; you're growing a healthy snack!

Getting Started: What You'll Need

Alright, guys, let's get down to the nitty-gritty. To successfully grow nasturtiums indoors, you'll need to gather a few essential supplies. Don't worry; it's not a long list, and most of these things you might already have lying around.

• Seeds or Seedlings: You can start nasturtiums from seeds or purchase seedlings from your local garden center. Starting from seeds is generally more cost-effective, but seedlings will give you a head start. If you're going the seed route, make sure to choose a variety that's well-suited for indoor growing. Dwarf varieties, like 'Tom Thumb' or 'Alaska,' are excellent choices as they tend to be more compact and less sprawling. But if you want to see those vibrant blooms faster, seedlings might be the way to go. It really depends on your patience and how quickly you want to see those flowers!

• Pots or Containers: Choose pots or containers that are at least 6 inches in diameter. Nasturtiums have a fairly shallow root system, so depth isn't as crucial as width. Make sure your containers have drainage holes to prevent waterlogging, which can lead to root rot. You can use terracotta pots, plastic containers, or even hanging baskets. The choice is yours! Just make sure they're clean and ready to go.

• Potting Mix: Use a well-draining potting mix specifically formulated for containers. Avoid using garden soil, as it can be too heavy and may not drain properly. A good potting mix will provide the necessary nutrients and aeration for your nasturtiums to thrive. You can find these mixes at any garden center or online. Look for mixes that contain ingredients like peat moss, perlite, or vermiculite. These will help with drainage and aeration.

• Grow Lights (Optional): While nasturtiums love sunlight, they can also grow under artificial lights if you don't have a sunny spot. If you're growing them in a dimly lit area, consider investing in a grow light to ensure they get enough light. LED grow lights are a great option as they are energy-efficient and produce the right spectrum of light for plant growth. You can find them in various sizes and prices, so choose one that fits your budget and needs.

• Watering Can or Spray Bottle: You'll need a way to water your nasturtiums. A watering can with a long spout is ideal for reaching the soil without disturbing the leaves. A spray bottle can also be handy for misting the leaves, especially in dry environments. Just make sure the water is at room temperature to avoid shocking the plants.

• Fertilizer: Nasturtiums are not heavy feeders, but they will benefit from occasional fertilization. Use a balanced liquid fertilizer diluted to half strength every few weeks during the growing season. Avoid fertilizers that are high in nitrogen, as this can promote excessive foliage growth at the expense of flowers. Look for fertilizers with a higher phosphorus content, as this will encourage blooming.

• Trellis or Support (Optional): If you're growing a climbing variety of nasturtium, you'll need a trellis or other support for them to grow on. This will help them stay tidy and prevent them from sprawling all over the place. You can use a simple bamboo stake, a small trellis, or even a decorative obelisk. Get creative and find something that fits your style!

Step-by-Step Guide to Growing Nasturtiums Indoors

Okay, now that you've got all your supplies, let's dive into the step-by-step process of growing nasturtiums indoors. Don't worry; it's pretty straightforward, and with a little care, you'll be enjoying those beautiful blooms in no time!

Step 1: Planting the Seeds or Seedlings

If you're starting from seeds, soak them in water for a few hours before planting. This will help soften the seed coat and speed up germination. Fill your pots or containers with potting mix, leaving about an inch of space at the top. Sow the seeds about half an inch deep and an inch apart. If you're using seedlings, gently remove them from their nursery pots and plant them at the same depth they were growing in previously. Water gently after planting to settle the soil.

Step 2: Providing the Right Environment

Nasturtiums need plenty of light to thrive, so place your pots in a sunny location where they'll receive at least six hours of direct sunlight per day. A south-facing window is ideal. If you don't have enough natural light, use a grow light to supplement. Nasturtiums prefer temperatures between 60-75°F (15-24°C), so keep them away from drafts and extreme temperatures. Good air circulation is also important to prevent fungal diseases, so avoid overcrowding the plants.

Step 3: Watering and Fertilizing

Water your nasturtiums when the top inch of soil feels dry to the touch. Avoid overwatering, as this can lead to root rot. Water thoroughly until the excess water drains out of the drainage holes. During the growing season (spring and summer), fertilize every few weeks with a balanced liquid fertilizer diluted to half strength. Reduce watering and fertilizing during the winter months when the plants are not actively growing.

Step 4: Pruning and Maintenance

To encourage bushier growth and more flowers, pinch back the tips of the stems regularly. This will also help prevent the plants from becoming too leggy. Remove any yellow or brown leaves to keep the plants healthy and attractive. If you're growing a climbing variety, train the stems to grow up a trellis or support as they grow. Keep an eye out for pests like aphids and whiteflies and treat them promptly if you notice an infestation.

Step 5: Harvesting and Enjoying

You can start harvesting nasturtium leaves and flowers as soon as the plants are large enough. The leaves have the best flavor when they are young and tender. The flowers are most flavorful when they are freshly opened. Simply snip off the leaves and flowers with scissors or your fingers. Use them to add a peppery kick to salads, sandwiches, soups, or as a colorful garnish. You can even pickle the seed pods for a unique treat!

Common Problems and How to Fix Them

Even with the best care, you might encounter a few problems when growing nasturtiums indoors. But don't worry; most issues are easily fixable. Here are some common problems and how to address them:

• Leggy Growth: If your nasturtiums are growing tall and spindly with few flowers, they're probably not getting enough light. Move them to a sunnier location or use a grow light to supplement. Pinching back the stems can also help encourage bushier growth.

• Yellowing Leaves: Yellowing leaves can be a sign of overwatering, underwatering, or nutrient deficiency. Check the soil moisture and adjust your watering schedule accordingly. If the soil is consistently wet, reduce watering. If the soil is dry, water more frequently. If you suspect a nutrient deficiency, fertilize with a balanced liquid fertilizer.

• Pests: Nasturtiums can be susceptible to pests like aphids, whiteflies, and spider mites. Inspect your plants regularly for signs of infestation, such as sticky residue, webbing, or tiny insects on the leaves. Treat infestations with insecticidal soap or neem oil. You can also try blasting the pests off with a strong stream of water.

• Lack of Flowers: If your nasturtiums are not flowering, it could be due to a lack of light, too much nitrogen fertilizer, or stress from extreme temperatures or inconsistent watering. Make sure your plants are getting enough light and avoid fertilizers that are high in nitrogen. Provide consistent watering and keep them in a temperature-stable environment.

Creative Ways to Use Nasturtiums

Okay, so you've successfully grown your nasturtiums indoors, and now you're wondering what to do with them. Well, the possibilities are endless! These versatile plants are not only beautiful but also incredibly useful in the kitchen and beyond.

Culinary Delights

• Salads: Nasturtium leaves and flowers add a peppery kick and a splash of color to any salad. They pair particularly well with other greens, fruits, and cheeses.

• Sandwiches: Use nasturtium leaves as a spicy alternative to lettuce or watercress in sandwiches and wraps.

• Soups: Add chopped nasturtium leaves or flowers to soups and stews for a peppery flavor and a beautiful garnish.

• Garnish: Use nasturtium flowers to garnish cakes, desserts, and cocktails for a pop of color and a unique flavor.

• Pickled Seed Pods: Pickled nasturtium seed pods are a delicious and unique condiment that tastes similar to capers.

Beyond the Kitchen

• Companion Planting: Nasturtiums are excellent companion plants for many vegetables, including tomatoes, cucumbers, and cabbage. They help repel pests and attract beneficial insects.

• Natural Dye: The flowers can be used to create a natural dye for fabrics and yarns.

• Medicinal Uses: Nasturtiums have been traditionally used for their antibacterial and antifungal properties. They are also a good source of vitamin C.

Nasturtium Varieties for Indoor Growing

When choosing nasturtium varieties for indoor growing, it's best to opt for compact or dwarf types that won't outgrow your space. Here are a few popular varieties that are well-suited for indoor containers:

• 'Tom Thumb': A classic dwarf variety that grows to about 12 inches tall and produces a mix of colorful flowers.
• 'Alaska': Another compact variety with variegated leaves and a variety of flower colors.
• 'Jewel Mix': A mix of semi-trailing varieties with a wide range of flower colors.
• 'Empress of India': A dwarf variety with deep blue-green leaves and scarlet red flowers.

Conclusion: Enjoying Your Indoor Nasturtium Garden

So, there you have it! Growing nasturtiums indoors is a rewarding and enjoyable experience that can bring beauty, flavor, and a touch of nature into your home. With a little care and attention, you can enjoy these vibrant plants year-round. Whether you're a seasoned gardener or a newbie, nasturtiums are a fantastic addition to any indoor garden. So go ahead, give it a try, and get ready to enjoy the peppery goodness and colorful blooms of your very own indoor nasturtium garden! Happy gardening, guys!