Each kit contains all the parts you need to grow your chosen herb from seed, just follow the instructions and within 7 to 10 days you’ll notice the seeds begin to germinate. Remember these plants need light to grow, more light equals more rapid growth ( you could also try giving them a few extra drops of nutrient solution to really give them some ‘pep’. Although the different herbs grow at different rates within 7- 8 weeks given enough light you should find they are ready for you to pick some leaves off and use them in your cooking. Continue like this and the plants should give you months of steady growth. There is enough solution to last you around two years.