Growth times

Different plants grow at different rates


Growth of the plants is affected primarily by four factors: light, water, temperature and nutrients.

Each plant species has its own requirements for its growing environment. Some plants grow slower, some faster. The plants also need different amounts of space. Our plant capsules are divided into four categories by rate of growth, making it easy to select compatible plants. When you grow plants from the same category, the Plantui indoor garden ensures an optimal amount of light and water for the category. 

Each seed package indicates how long it takes for the plant’s germination, growth and harvest. These times are indicative. Sometimes seeds can grow at different rates – sdon’t worry if the plants take longer to grow than expected. 

For best results, select plants with the same growth rate  


You will achieve the best result if you combine plants which have similar growth cycles. This will give you the best crop and your plants will thrive. When the plants grow at the same rate, they do not steal space from one another. There is enough space and light for every plant.  


Growth times 

Plants are divided into four growth categories based on their germination period and growth rate: 

  • Fast: 3-5 weeks 
  • Moderate: 5-8 weeks 
  • Slow & long-lasting: 8-12 weeks 
  • Tomatoes and chili peppers: 12+ weeks 

When you select from the same category, the plants will grow at approximately the same rate. This prevents faster-growing plants from dominating slower-growing varieties. You can, however, combine plants from two different categories, as long as the plants are in adjacent groups. 

For example, plants from the 3-5 week category can be grown together with plants from the 5-8 week group. However, the different growth rates between 3-5 and 8-12 weeks will be too big.  

The growth rate of plants can still vary, even between those in the same growth categoryor even within the same plant. In order to make sure that slower growing plants get enough light, we recommend that you use a boosting light block instead of a normal height block. 

There are also differences between plants within the same growth group. You may notice some plants initially growing faster than others, but then seeing the slower plants eventually catch up. As well as differences between species there are also differences in growth rate between seeds of the same plant. Again, this is perfectly normal.  

Plants that can be grown together 


Fast-growing plants 

Growing time 3-5 weeks 

Plants that grow fast include many of the lettuce varieties. Try out the wasabi mustard or watercress as a different type of seasoning for your food. Or use lovage as a healthy replacement for salt in your soup. 

Here are some recommendations of something new to try:  

  • Komatsuna: an exotic Asian leaf vegetable. Use the same way as you would use lettuce. 
  • Lovage: a great substitute for salt to add flavour to your food! 
  • Fringed Red: beautiful mustard plant that tastes like Dijon. 
  • Garden Cress: has a lovely peppery taste!  

 See all our 3-5 week plants here


Plants with average growing time 

Growing time 5-8 weeks 

This growth category includes all our basil varieties and many other classic herbs, such as sage and coriander.  

  • Dill: an absolute classic with strong taste. 
  • Sage: try it with pasta!
  • LemonBasil: add it as a twist in your drinks or be brave and try it with fish. 
  • SpicyBasil: extra taste for true basil fanatics!  

See all our 5-8 week plants here 


Slowly growing plants 

Growing time 8-12 weeks 

This plant category includes some gorgeous varieties. Some can grow very tall so a light block may be required. The light blocks ensure plants also get enough light to the lower and inner parts, increasing the plant’s well-being and taste.  

  • Shiso: an Asian herb that grows very tall. 
  • Violets: edible flowers to sprinkle on your dessert. 
  • Blood Sorrel: a beautifulplantwith a tangy, sour taste. 
  • Thyme: great in garlic dip. 

See all our 8-12 week plants here


Chili peppers, tomatoes and edible flowers 

Growing time 12+ weeks 

Plantui is a quick way to grow tomatoes. They can start to produce fruit two to three months after sowing (a fast pace for tomato plant). The red tomato is small and beautiful. Grow up to six plants in the Plantui Smart Garden 6 indoor garden or combine it with other plants.