I have been growing houseplants for 50 years, and flushing is a critical step in the process. It makes plants grow better, it solves issues with hard/alkaline tap water and it reduces the number of times you need to replace potting media. So it saves money. Will it harm plants? If done correctly, it can’t possibly harm your plants.
View the video for this blog post: https://youtu.be/FS4g7uuVsJU
African violets have been grown for many years, and I have been growing them more. They are very similar to my streptocarpus and require almost the same care. Unfortunately, the large interest in the hobby has resulted in several myths. Here are the ones I have identified so far.
Streptocarpus normally have 5 petals, two upper ones and three lower ones. In many cultivars and most species the color of both the upper and lower petals are the same, or at least very similar. Some newer cultivars are known as “bicolors”. In these plants, the upper petals have one color scheme and the lower petals have a different one, hence the name bicolor. This blog post details the origin of the first bicolor streptocarpus and documents some other special characteristics of bicolors.
I have been growing Streptocarpus for several years, doing a lot of breeding to develop new cultivars. A couple of years ago, I got a seedling that was a stable peloric. Its offspring have now flowered, and I have several pelorics. These are a bit more common in Europe, but few people seem to be breeding them in North America, so I decided to start a breeding program for them.
The purpose of this blog post is to document both my journey and the information I find about breeding peloric streptocarpus, which seems fairly limited.
I see a lot of online comments from people who feel their tap water isn’t suitable for plants. People are moving towards distilled, RO water, or rainwater instead. Is this necessary? Is your tap water a problem?
The following are some concerns people have.
Tap water is rarely a problem for outdoor gardens growing in real soil, but it can be a problem for houseplants and plants growing in soilless mixes, and that is the focus of this post.
Humidity is a form of water, and water is critical for plant growth. We can all sense high and low humidity, but what effect do these extremes have on plants? How does a gardener control humidity to help plants grow well?
Let’s clarify the misunderstandings and myths about providing humidity for plants.
I have been growing orchids for over 40 years, and at one point, I grew over 1,000 orchids. Whenever I was asked about the best orchid pot, I responded with the same answer. Any green plastic pot will work just fine. If it had a raised bottom with drainage holes at the bottom rim (azalea pot), to allow better water drainage, that would be better, but any pot will work.
That answer is still correct. We know that because most hobbyists use that kind of pot.
However, there is some new research that suggests a clear pot may be better. Let’s have a look at what the new science says.
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It used to be very common to add drainage material, such as rocks, Leca, or clay pot shards in the bottom of pots for added drainage. Then it was claimed that this is a myth and it does not work. But then some new science this year upsets everything by showing drainage material may actually work.
Should a gardener use drainage material? What kind of material works best?
Watering may be the hardest part of growing streptocarpus well. Not because they are difficult to water but because there is a lot of confusion and misinformation about their care. The goal of this post is to describe some watering experiments and provide clarity about watering.
Gardeners make repotting more complicated than it needs to be and in the process, they have created all kinds of myths about the process. It’s time to simplify repotting and bust the myths around it.
Streptocarpus seeds are some of the tiniest you will ever sow but they are also very easy to germinate if you follow these simple instructions.
Streptocarpus are becoming popular houseplants and for good reason. They are relatively easy to grow, they don’t need high light and they bloom all year long in the right conditions.
How much light do they need?
Ideal conditions for Streptocarpus are at or above these values:
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