How to Grow Poppies, a Cottage Garden Favorite

Updated on December 12, 2017
OldRoses profile image

Caren White is a Master Gardener and instructor at Home Gardeners School. She has been a volunteer at Rutgers Gardens for over a decade.

A popular late spring/early summer flower is the poppy. Or I should say poppies. They come in three different varieties.

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The oriental poppy (Papaver orientale) is a perennial most often seen in old-fashioned gardens. The plants are large with hairy leaves. They appear in the spring, growing until mid-summer when they burst into bloom. When they have finished blooming, the foliage dies leaving an empty space in your garden until the following spring. It’s best to plant perennials around your oriental poppies to mask that empty space. Most older gardens sport oriental poppies with orange blossoms but newer cultivars have white, salmon, red or purple flowers.

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The field or corn poppy (Papaver rhoeas) is an annual and is the symbol of Veteran’s Day (US) or Remembrance Day (Europe). Before the advent of modern herbicides, field poppies were a common weed. It was said that when the shelling stopped at the end of WWI, the fields were covered with red poppies because the soil had been churned up and long buried seeds germinated. Their red flowers appear in late spring.

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P. rhoeas was hybridized by an English clergyman, Rev. William Wilkes, into the popular Shirley poppies which sport blooms in scarlet, purple, pink and white. The scarlet, purple and pink flowers have delicate white edges.

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The opium poppy (Papaver somniferum) is the source of opium but also the delicious seeds used in baking. It is an annual plant with gray-green foliage and white, lavender or red flowers that appear in early summer. The opium is contained in the sap in the seed pods that appear after the flowers have finished. It is legal in the US to grow opium poppies but illegal to harvest the opium from them. You are free to harvest the seeds to either save for next year or use in your favorite recipes.

How to Grow

No matter what kind of poppies you choose, they are easy to grow from seed. Choose a sunny spot in your garden and surface sow the seeds. They need light to germinate. You can sow the seeds in the late fall or early spring. They need a period of cold to germinate. You can even sprinkle the seeds on top of the snow in the winter and when it melts in the spring, the seeds will germinate when they come into contact with the soil.

It’s best to sow your seeds where you want your plants to grow because they do not transplant well. If you want to start them indoors, do so four to six weeks before your last frost.

The seeds are tiny so they can be difficult to sow. A good solution is to mix your seeds with sand at a rate of one part seed to two parts sand. Spread the sand over the area where you want the seeds to grow. This will allow you to sow them more evenly.

Keep the seeded area moist. You can expect germination within 2 weeks if your soil is at least 55⁰F. Thin your seedlings when they are one inch high so that the resulting plants will be 6 to 10 inches apart.

How to Harvest Seeds

After your poppies have finished blooming, you can remove the seed pod before the seeds form or if you wish to harvest to seeds, leave the pods on the plants until they turn brown. They will be ready when you hear the seeds rattling around inside. Gather the pods in a paper bag with slits cut into it for air circulation to finish drying. When completely dry, the seeds will begin to spill out of the pods through holes along the top edge. The remove all of the seeds, simply pop the top of the pod.

Since poppies grow so well from seed, you might want to leave some pods on the plants to spread their seeds in your garden for next year.


Questions & Answers

    © 2017 Caren White

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      • OldRoses profile imageAUTHOR

        Caren White 

        15 months ago from Franklin Park, NJ

        Himalayan blue poppies are very difficult to grow. Kudoes to you if you are successful. Thanks for readng and commenting.

      • eugbug profile image

        Eugene Brennan 

        15 months ago from Ireland

        I had about 30 oriental poppy plants growing in various parts of my garden for several years. These are very easy to grow from seed. However last year every single one of them died. First they turned yellow in the spring last year and then wasted away. I still haven't figured out the cause, but I have a theory that the very wet autumn/winter we had here in late 2015 may have been responsible.

        The opium poppies look nice! Must try growing them. Himalayan blue poppies are also stunning.

        Thanks for sharing!

      • Kristen Howe profile image

        Kristen Howe 

        15 months ago from Northeast Ohio

        What a great hub on growing poppies. They're beautiful and colorful at the same time. I would love to have my container plant of them for my patio this summer. Thanks for sharing.

      • OldRoses profile imageAUTHOR

        Caren White 

        15 months ago from Franklin Park, NJ

        Viet, glad it brought such wonderful memories.

        Heidi, you're welcome. Happy you enjoyed it.

      • heidithorne profile image

        Heidi Thorne 

        15 months ago from Chicago Area

        How pretty! Thanks for sharing with us.

      • punacoast profile image

        Viet Doan 

        15 months ago from Big Island, Hawaii

        Lovely article! It brings back fond memories of my years living in northern Michigan. Every spring the open fields in Leelanau peninsula are filled with colorful Shirley poppies. Thanks!

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