How to Grow Roses from Seeds

Growing roses from seeds is a challenge because most of the flower seeds you get won’t germinate no matter how much care you take. Fortunately, most rose plants produce a lot of seeds inside the fruit, so a high germination rate is not required. You should remember that the growing rose plant will have a different character or shape from the mother plant, especially a hybrid or hybrid rose between 2 varieties.

Table of Contents

Harvest rose seeds

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Create conditions for rose fruit to develop by leaving dead flowers on the tree. Flowers are usually pollinated by insects or self-pollinated in some varieties, so it is not necessary to pollinate by hand, unless you want to cross separate varieties together. The flowers should not be cut, but instead should be kept on the plant. After wilting, the flower will develop into a rose fruit.

Note : Seeds obtained can develop into plants with other characteristics. This happens when you collect seeds from a hybrid rose plant or are pollinated from another nearby rose variety.

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Pick roses when ripe. Newly planted roses are usually small and green, then change color as they grow until they reach red, orange, brown or purple. You can collect the seeds at this point or wait until the fruit begins to dry and wrinkle. Do not wait for the fruit to become too dry and brown to harvest as the seeds inside may be dead. ^{[1] X Research Source}

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Remove the rose fruit and remove the seeds. Prick the rose with a knife to see the seeds inside. Pull out the seeds with the tip of a knife or other tool.

Different varieties of roses will produce fruits with different amounts of seeds. A rose can have from a few seeds to several dozen seeds.

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Remove the powder from the seeds. The flour will prevent the seeds from germinating. The fastest way to remove powder from seeds is to sieve or strain the seeds, pour water over them, and rub them on the surface of the seeds.

Help seeds germinate

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Soak the seeds in a diluted hydrogen peroxide solution (if desired). A mixture of water and hydrogen peroxide can minimize the growth of mold on seeds. Stir 1.5 teaspoons (7 ml) of 3% hydrogen peroxide into 1 cup (240 ml) of water. Soak the rose seeds in this solution for at least 1 hour.

Some studies show that a small amount of mold growth can actually help break down the shells around seeds. However, you should still apply the above method to prevent too much mold from growing.
You can also sprinkle some antifungal powder on the rose seeds.

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Place rose seeds on damp material. Rose seeds usually do not germinate if not stored in cold and wet conditions like winter climates. Place the rose seeds between 2 layers of slightly damp paper towels or in a container containing unsalted river sand, mud moss, or Vermiculit.

This is the first step in the rose growing process, called stratification. If you buy rose seeds from the store and the label says stratified, you can skip the step at home. ^{[2] X Research Source}

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Place the seeds in the refrigerator for a few weeks. Place rose seeds and wet material in a plastic bag or nursery tray in a plastic bag or multiple nursery trays, then store in a cold area of the refrigerator, such as in the empty vegetable drawer of the refrigerator. .

Do not store seeds in the same place as fruits or vegetables in the refrigerator to prevent chemicals from releasing and hindering seed growth.
Maintain medium humidity for seed storage environment. Add a few drops of water to the paper towel each time it feels dry.

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Remove the seeds from the refrigerator. Try to remove the seeds from the refrigerator during the normal germination period, such as early spring. Make sure the environment outside the refrigerator is around 21 degrees Celsius ^{. [3] X Research Source} Seeds will not germinate until removed from the refrigerator. Depending on the rose variety and seed, germination can take 4-6 weeks. Typically, more than 70% of seeds will never germinate. ^{[4] X Research Sources}

Planting seeds

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Put the sterile seed potting mix into the nursery tray. A small nursery tray can help take care of many seeds at once. In addition, using a drinking cup with a hole in the bottom also helps you easily observe the condition of the seeds taking root.

Conventional potting soil should not be used as it often drains poorly and leaves the seedlings susceptible to rotting.

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Plant seeds. Seeds purchased from the store can be planted immediately. If you have made your own seeds using the above process, you should plant them as soon as they sprout. Put the seed down because it is the root of the plant. Gently cover with soil 6 mm deep. Each seed should be spaced at least 5 cm apart to reduce competition. ^{[5] X Research Sources}

Germinated seeds can grow into seedlings in 1 week. Store-bought seeds do not require stratification at home, so it can take up to several weeks to develop into seedlings. ^{[6] X Research Source} Seeds that do not undergo stratification but apply the above germination process can develop into seedlings after 2-3 years.

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Keep the soil warm and moist for the seedlings. Keep the soil moist but not too wet. Temperatures between 16-21ºC are ideal for most rose varieties. ^{[7] X Research Source} Seedlings usually thrive if given light for about 6 hours (or more) per day. However, you should do your research on the parent rose variety to get an idea of the seedlings’ preferred growing environment. ^{[8] X Research Sources}

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Know when to replant seedlings. The first two leaves that emerge from the seedling are called cotyledons. Seedlings, when sprouting some “true leaves”, have a typical rosette leaf shape that can survive replanting. The planting process is also easier if the seedlings are replanted in a large pot for 1-2 years, then brought out to plant again. ^{[9] X Research Source}

It is best to replant the seedlings as soon as you notice the roots surrounding the nursery tray.
Do not move the seedlings outside until the last frost of winter has passed.

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Caring for rose plants . When the seedlings appear healthy again after being planted outside, you can start watering as usual. Fertilizing a few times as directed on the package during the warm growing season can help the plant grow and bloom. However, you should keep in mind that some varieties of roses will not bloom during the first year.

Things you need

Water
Paper towels (or see instructions for alternatives)
Rose fruit or rose seed
Hydrogen peroxide 3% (if desired)
Seed nursery soil mix

Advice

Ask the varieties of roses available at the nursery to find the right variety for your climate and garden.

Warning

Do not rely too much on the advice of dropping seeds in water to check the ability of seeds to germinate and develop. This method may work for some plants, but the rose seeds can still float whether or not they are flattened. ^{[10] X Research Source}

Steps