Haworthia seeds sourced from best Japanese grower
Haworthia Seeds When to sow haworthia seeds:
Ideal temperatures for me are a night/day range of 15-25 degrees Celsius. In my climate, this occurs during October and november. Planting during other times increases risk of bad or no germination or a struggle to keep your seedlings alive. My advice for best results, check when your temperatures starts to go into this range, in north India probably around Oct, and again in Feb/Mar, these are your best times to sow Haworthia seed. However I have sowed quites successfully mid winter (indoor start with heat and light source) as well as mid summer (with daily temperatures consistently over 30 degrees Celsius, and minimums above 20 degrees), but you have to make the required adjustments (e.g. providing extra shade, cool area or alternative heat source (eg heatpads or heated room). If you a beginner grower, sow the seeds in different batches as this will decrease your chances of total failure. Keep a few seeds for when conditions are perfect.
Haworthia seedling germination and growing soil mix:
Each grower swears by his own soil mix and success really depends on a lot more than your growing medium. Any good draining seedling mix should suffice. If you want to keep it really simple use a mix of river sand (or pool filter sand) with some succulent mix/compost with most of the bigger particles sifted out or removed manually. You don’t want the little seedling to struggle rooting through a big bark particle.
I microwave the mix thoroughly before use. I add some water and put a bowl full in the microwave for around 5 minutes. It comes out steamy hot and needs to cool down before being used. I also spray with Fungicide directly after sowing. Fungal attacks are one of the biggest reasons for loss of seedlings. I feel that these two steps have really improved my results.
A good haworthia seedling mix should have sufficient drainage and air between particles, but retain sufficient moisture.