How To Grow And Care For Milkweed Plants

  • By: Succulents Plants
  • Date: December 29, 2022
  • Time to read: 10 min.
Grow Milkweed Plants
Photo by courtesy of SimplyCreativePhotography

Are you looking for a beautiful, easy-to-care-for plant for your garden? If so, then the milkweed plant may be a perfect choice! Milkweed is a beautiful plant and provides several critical ecological benefits, such as providing food and habitat for butterflies and other pollinators. This article will discuss everything you need to know about growing and caring for milkweed plants, including what they are, where to plant them, sun and soil requirements, companion plantings, watering, fertilizing, pruning and deadheading, harvesting, and uses of milkweed.

What Is Milkweed?

Milkweed is a type of perennial wildflower that belongs to the Asclepias genus. Native to North America, over 100 varieties of milkweed grow in different habitats, including fields, meadows, prairies, and along roadsides and rivers. The most popular and widely distributed milkweed species is the common milkweed (Asclepias Syriaca).

Milkweed is a wildflower easily recognizable by its large clusters of star-shaped flowers. The plant produces multiple stems, each of which has a set of three or four leaves. The flowers can come in various colors, including pink, purple, and white, and are great for attracting pollinators like bees and butterflies.

The milkweed leaves produce a milky sap when broken, giving the plant its name. This sap is sticky and toxic and can cause skin irritation in some people. Milkweed sap is also an important food source for monarch butterfly larvae—the caterpillar consumes the leaves and stores the toxins, which it can then use to deter predators.

The plant’s flower structures also produce light-colored seeds attached to feathery “parachutes” carried away by the wind. These seeds are essential for propagating new plants and are used in various crafts.

All in all, milkweed is a remarkable and beautiful wildflower that looks great and is an important food source for pollinators and monarch butterflies. With the proper growing and care instructions, it can easily be cultivated in gardens for added beauty and wildlife.

Where To Plant Milkweed

While milkweed plants can grow in various locations, understanding the needs of the plant and the space available in your garden will help you determine the best spot for your new milkweed patch.

Location is critical, as milkweed plants need full sun to thrive. While partial shade may be tolerated, too much can stunt growth and lead to fewer flowers. Poor soil is usually not an issue, as milkweed can thrive in the soil of all types. Rocky, clay-filled soil is often ideal for milkweed. However, it is essential to remember that milkweed doesn’t like to be overwatered, so if your soil has poor drainage, you may need to adjust your watering schedule.

You may plant milkweed in a dedicated bed or a spot among other perennials or flowering plants. If you are looking to attract butterflies, planting your milkweed away from other plants is ideal since butterflies will be more likely to find it that way. Adding a rock or low wall to the area can also help create a warm microclimate that milkweed will enjoy.

When planting milkweed, you must be sure you are planting native varieties. Native milkweed species are adapted to your region, making them the best choice for your garden. Planting the correct milkweed variety for your region will ensure that your milkweed is less prone to disease and is best equipped to provide habitats for butterflies and other pollinators.

Sun and Soil Requirements

Milkweed plants thrive in sunny spots with sandy, loamy, or well-drained soil. They do not like wet or soggy soil, so ensure the soil you choose drains well and isn’t overly saturated.

You can also amend your soil with compost or manure to help plants grow and thrive. Milkweed plants need at least 6 hours of direct sunlight each day. If you have a shady spot in your garden, it’s best to avoid planting milkweed there.

Finally, milkweed plants prefer slightly acidic soil with a pH of 6.5 to 7.5. If you’re unsure of the pH of your soil, you can purchase a soil test kit at your local garden center and test it yourself. Once you’ve determined your soil’s pH, you can adjust it with the appropriate amendments.

Companion Plantings

Adding companion plants to your milkweed garden can enhance its beauty and help support the monarch butterfly population. Milkweed plants are a vital food source for the larva of monarch butterflies, but they’re not the only plants that can attract these beautiful creatures. Companion plants can help create a habitat inviting to various pollinators, including butterflies.

Incorporating different types of nectar-rich plants and host plants for larvae is one the most effective ways to create a wildlife-friendly garden. One of the critical benefits of companion plantings is that they help increase the garden’s biodiversity, which can create a more prosperous environment for pollinators.

Regarding companion plantings for milkweed plants, there are plenty of options. Planting a variety of native flowers, such as coneflowers, asters, and joe-Pye weed, will attract a wide range of pollinators. These flowers should be planted in at least three groups, with various heights, textures, and blooming times.

Other beneficial companion plants for milkweed include grasses and herbs like fennel, lavender, and thyme. These are important as they provide additional pollen, nectar, and seed and provide habitat and protection for pollinators. They are also great for providing texture and color in the garden.

When planning companion plantings for your milkweed garden, it’s important to remember that the milkweed plants should remain the garden’s focus. The companion plants should be placed around the milkweed plants rather than taking away from their beauty.

By carefully choosing the right companion plants, you can create a beautiful milkweed garden that supports the monarch butterfly population. Just remember to keep the milkweed plants as your garden’s focus and provide them with plenty of space to grow.

Caring For Milkweed Plants

When it comes to the soil for your milkweed plants, you will want well-draining soil. You can add compost or manure to enrich the soil, as milkweed plants are heavy feeders.

Weeding is also essential when caring for milkweed plants, as other plants can quickly crowd them out. Make sure to keep the area around the milkweed plants clear so that they can receive the light, water, and nutrients they need.

Fertilizing milkweed plants is also essential to help ensure they stay healthy and produce beautiful, vibrant flowers. Fertilizing milkweed plants should be done at the beginning of their growing season and throughout the summer. Using an organic fertilizer, such as fish emulsion, will be beneficial.

When the milkweed plants begin to flower, you will want to deadhead the spent flowers. Deadheading is essential, as this helps to prevent the milkweed from reseeding itself. If the milkweed does reseed itself, it can become a nuisance and spread beyond the area you have designated for it.


Milkweed prefers moist soil and does not do well when the soil completely dries out. When you first plant your milkweed, water it deeply and thoroughly until the water can be seen coming out at the bottom of the pot. Give it a few minutes to settle into the pot, and ensure no air bubbles in the soil. After this, water your milkweed when the top inch of the soil is dry. If your milkweed is planted directly in the ground, water it occasionally during little rainfall.

Additionally, you can also mist your milkweed leaves every few days. This is especially helpful during dry periods or winter months without rainfall—milkweed plants like evenly moist soil, not soaked in water or dried out. Keep in mind that milkweed plants do not like waterlogged soil either. To make sure the soil is not too wet, you can insert a finger into the soil. You don’t need to water your milkweed if the soil feels damp.


Fertilizing milkweed plants can help them grow and thrive, but it’s essential to use the right kind of fertilizer that’s low in nitrogen. Too much nitrogen can cause excess foliage growth at the expense of blooms and pods. The best fertilizers for milkweed plants are ones with phosphorous, potassium, and other micronutrients.

When it comes to timing, early spring is the ideal time for fertilizing milkweed plants. This will ensure that your milkweed is ready to go for the season. If you decide to apply fertilizer, ensure that the root zone is moist enough to help the fertilizer get absorbed. Also, ensure that you spread the fertilizer over a wide area so that the milkweed is evenly covered.

After fertilizing, water the milkweed plants sincerely to help the fertilizer reach the roots. It’s also a good idea to conduct a soil test every year or two to see which nutrients are in the soil to make sure your milkweed plant is getting the nutrients it needs. Lastly, don’t forget to clean up any fallen leaves or debris around the plant to ensure the fertilizer gets to the roots.

Pruning and Deadheading

Pruning and deadheading are essential tasks for nurturing your milkweed plant. Pruning can be done to control the size and shape of your plant, while deadheading removes the spent blooms and encourages new growth.

When it comes to pruning, it’s best to do this in the early spring when the plant is just beginning to grow, as it will help to encourage stronger, bushier growth. Pruning is also vital to keep the plant from getting out of control, as some varieties can quickly spread. To prune, use a pair of sharp garden shears to cut back the stems of your milkweed to the desired size and shape.

Deadheading is also essential if you want your milkweed to keep blooming throughout the spring and summer months. Remove any spent blooms by pinching or cutting them off at the stem. This will allow the plant to concentrate its energy on new growth rather than wasting it on spent blooms. Deadheading should be done regularly throughout the blooming season to ensure continual growth and flowers.

Both pruning and deadheading are simple tasks, yet they can make a difference when nurturing your milkweed plant.

Harvesting Milkweed

When harvesting milkweed, it is essential to be gentle, as the plant is quite fragile. A sharp pair of scissors or pruners is essential to ensure that stalks can be cut cleanly and quickly without damage to the plant. Once cut, the stalks can be hung upside down by the stem to dry. It is best to dry the stalks in a warm, dry area, out of direct sunlight.

Once completely dry, the milkweed stalks can be stored without further preparation. However, removing the floss from each stem is recommended, as this can help prevent mold and preserve the plant for a more extended period. To remove the seed floss, gently rub the seed heads between your fingers; the floss will come off quickly.

Finally, the dried stems can be stored in an airtight container and kept in a cool, dry place. If stored properly, the stems can remain viable for several years. When starting a new crop, remove a few stems from the container and replant them.

Uses of Milkweed

Milkweed plants are more than just beautiful additions to your garden! They are essential for the survival of the monarch butterfly and also have a variety of other uses. Here are some of the ways you can use milkweed plants:

• Supporting Monarch Butterflies: Many milkweed species are essential for monarch butterflies’ survival. Female monarchs lay their eggs on the underside of milkweed leaves, and the caterpillars feed exclusively on the plant. Therefore, it is essential to have milkweed present in your garden if you want to attract monarchs to it.

• Food Source: The leaves and flowers of milkweed can also be eaten. They have a slightly nutty flavor and are packed with essential vitamins, minerals, and nutrients. You can even make milkweed tea from its leaves!

• Medicinal Benefits: Milkweed contains a variety of compounds that can be beneficial to human health. It is used to treat arthritis, skin conditions, and even cancer. It has antifungal and anti-inflammatory properties.

• Fiber: You can make durable ropes, fabrics, and paper from milkweed fibers.

• Compost: Milkweed has a high nitrogen content, making it a great addition to your compost heap. It will help break down other organic materials while adding valuable nutrients to your soil.

Milkweed plants have been used and prized by humans for centuries. They are a great addition if you have space in your garden, as they provide various benefits.


In conclusion, milkweed plants are essential to any garden or landscaping space. Not only do milkweed plants provide a vital source of food for monarch butterflies, bees, and other pollinators, but they also offer a range of uses for home and commercial purposes. Growing milkweed plants is easy when you know how to do it. Make sure to pick a suitable milkweed for your garden, choose the right sun and soil requirements, and provide companion plantings to attract pollinators. When caring for milkweed, regular watering and fertilizing, pruning, deadheading, and harvesting will help you keep your milkweed plants healthy and blooming. With a bit of care and effort, you can enjoy all the benefits of milkweed plants and help the environment!


Latest Articles:

Growing Wasabi Plants: A Detailed Guide To Planting And Caring For Wasabi

Growing Chia Plants: A Beginner’s Guide

Growing Chamomile Plants: The Complete Guide


Growing Wasabi Plants

Previous Post

Growing Wasabi Plants: A Detailed Guide To Planting And Caring For Wasabi

Next Post

Growing Strawberry Plants: An Easy Guide

Grow Strawberry Plants