Growing Beautiful Night Sky Petunia

Have you ever imagined seeing the galaxy every day? By planting a Night Sky Petunia, you will get this. This flower is indeed quite famous among gardeners. The pattern on the flower petals that looks like a galaxy is the main attraction. Find out how to plant and care for Night Sky Petunias here.

night sky petunia

Sometimes referred to as galaxy flowers, Night Sky Petunia were introduced in the year 2016 and are one of the most recent varieties of petunias available. It was created by an Italian plant breeder of two different petunia varieties and won the prestigious Fleurostar award for ‘Winner with the Wow Factor’. These are perennials.

Night sky petunias begin flowering in summer and will continue to bloom until the last frosty fall. Plant them in a place that is bright and direct, in a location that receives at minimum 4 to 6 hours of direct sunlight each day. They generally have purple petals, but some are red, white, yellow, and blue with white streaks.

They can grow up to 40 cm in height. The Night Sky Petunias all look different, which means that the patterns of the petals are based on the temperature and growing environment. If they are grown in the proper environment, they’ll leave you stunned by the stunning beauty of these beautiful flowers!

In addition to having a unique pattern that resembles a galaxy, this trumpet-shaped flower also has another uniqueness. The pattern on the flower petals can vary depending on the surrounding temperature.

How to Grow and Care Night Sky Petunia

night sky petunia

Petunias are annuals and only thrive for a short period of time.

But once you see the beautiful flowers blooming in early spring, they’ll keep growing and blooming all the way until the first autumn frost.

They begin flowering a little longer than some petunias generally at the beginning of summer, but they will continue until the end of fall.

This flower grows quickly with a long bloom time.


Although this plant is quite easy to cultivate, it does require full sun.

If they’re in too many shade conditions galaxy petunias aren’t able to produce as many flowers and won’t be as healthy.

They are often being affected by growing stems.


The galaxy petunia isn’t the most sensitive plant in regard to soil  varieties.

The most important thing is to select one that has good drainage.

It will not tolerate standing water and will prefer even the slightest amount of moisture.

Ideally, you should have an environment that is high in organic material.

Their long blooming season means that galaxy petunias require lots of energy.

Fertile soil will provide them with the nutrients they require to thrive.


Though they aren’t keen to remain dry for prolonged periods excessive watering can be a problem with the Galaxy Petunia.

Stems are susceptible to weakening, and the flowers will not be as healthy if they have feet that are wet from standing water.

It could also increase the chance of the plant becoming susceptible to Botrytis (a gray-colored fungal disease caused by mold).

Regular watering during warm months is typically enough.

When your night sky petunias have been growing inside hanging pots, or pots, they will need more frequent irrigation than those that grow in the soil – perhaps even every day during the summer heat.

It’s recommended to water only when the surface layer of soil has dried to the touch.

Temperature and Humidity

Temperatures can have an enormous impact on the striking patterns which the petunia galaxy is famous for.

The warmer temperatures of summer have been observed to produce fewer white spots.

It is likely that the patterns of your flowers change as the season advances.

If things are hot in the day and at night, flowers could be a solid purple hue.

As night temperatures get more moderate and offer a higher contrast with the daytime temperatures, white spots will be appearing again.


Your night sky petunia’s long-blooming flowers will benefit from regular fertilization, especially when the soil they’re in isn’t the most fertile.

If they’re in containers or hanging baskets feeding them a fertilizer that is balanced and slow-release  every fortnight ought to be enough.

For plants that are planted as bedding plants each time every three or four weeks is likely to suffice.

Pests and Diseases

The two pests you must be cautious concerning when cultivating Night Sky Petunia are Aphids and snails.

They can be removed by hand, or you can apply an oil solution made of neem to rid these pests.

Avoid soaking the leaves to avoid the spread of possible diseases.


Night Sky petunias differ from other petunias as they don’t require deadheaded often.

Although it may sound violent it’s really the process of removing flower petals, so the plant is able to release new blooms.

If your plants begin to grow excessively long.

Keep in mind that you could trim the stems midway through the season.


You can report and even propagate the Night Sky Petunias if you wish. It is essential to keep the temperatures of the soil steady, between 68 and 74 degrees until you see roots.

It is possible to fertilize when you begin to see roots. However, make sure that the soil remains slightly moist. When your roots are developed, the pinching may be recommended to increase growth. The plant that has roots will be ready to transplant. It is typically done in the period of three to four weeks. Avoid B-Nine if you are using a plant growth regulator. This is known to make the flowers white.

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