![]() The temperature for germination should be between 18-24C (64-75F), which is easily provided in a heated propagator. ![]() Our new vegan-friendly reduced peat incredicompost® is the best medium to use for sowing seeds and raising young plants. It’s important to sow your seed onto the right compost. Image: Petunia grandiflora ‘Double Cascade Burgundy Plum Vein’ F1 Hybrid from Thompson & Morgan The flowers will grow back more luxuriously and never cease to bloom.Plenty of petunia varieties can be successfully grown from seed Tip: The best time to deadhead your petunias is usually in mid-summer. This practice encourages them to bloom better instead of just producing seeds and makes them look even nicer. However, it’s often best to deadhead them anyway. If you have your eye set on some of the newer types of petunias on the market, the instructions may say that you won’t need to deadhead them. You can explore more seed varieties online. Prism Sunshine – This variety produces large, buttery yellow flowers that have a very good weather tolerance.Blue Spark Cascadia – Violet flowers with a dark purple core that also give off a sweet scent.The color contrast makes it outstandingly beautiful. Supertunia Silver – The bloom in itself is almost white and it has a lavender core and veins.If you’re not sure whether to start, we recommend choosing one of the following: So, you have quite a lot of options when it comes to growing these flowers from seeds. Passionate breeders all over the world come up with new types of petunias every single year. The insects usually disappear on their own later the same month. Budworm caterpillars – These little green caterpillars come out in July to feast on the flowers.It’s that easy! But again, make sure you don’t drown the roots. Aphids – Hose your petunias down using a lot of water.Choose varieties that are resistant to rot and mold in the first place to make your job easier. ![]() Soft rot or gray mold – There is no way to combat this.Still, here are a few things that can happen to these flowers and what you can do about them. They are pretty resistant to invaders as far as flowers go. The good news for every gardener who is in love with petunias is that they don’t require a lot of attention when it comes to diseases and pests. This is definitely the case for garden petunias that tend to spread and need all the nourishment they can get. In mid summer, you can use liquid fertilizer but no more than once every two weeks. They thrive on balanced fertilizers such as 12-12-12. You can use fertilizer to give your petunias a boost. Tip: Water them once a week, as deeply as you can, and allow them to drink that up first before returning to them with the watering can or water hose. But you don’t want to let the ground get dry, either. ![]() You have to be careful not to overwater them. Petunias love well-watered soils but don’t really like it when their roots sit in soggy soil. You may want to read more about soil types to figure out what soil you have in your garden. The soil has to be very fertile and well-fed, otherwise, they will not bloom at all. These flowers thrive in a slightly acidic soil that has been drained very well. However, if the temperature gets too hot or the sun is scorching, make sure to give them some shade as well. Tip: As a rule of thumb, most types of petunias enjoy being in the sun a lot. You have probably already come in contact with them because these are the most common types of petunias available. They are known for producing either single or double flowers that can grow up to 2-3 inches in diameter. Here is the classification along with some examples. It is out of those four subgroups that you can choose the kind you like the most or that will fit your garden best. If you’re new to the world of petunias, the first thing you need to know is that they are divided into four categories. Pale to deep green, with a sticky and hairy texture Single and double blooms that can reach 1 to 3 inches in diameterĪ wide variety of colors including pink, white, purple, and black some are spotted Where do they come from, what types of petunias can you grow in your garden, and what do they symbolize in the language of flowers?įind all you need to know about petunias in this definitive guide.
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