Despite these climate challenges, there have been some documented cases of saffron successfully being grown in parts of South Texas.
If you are willing to put in the effort and take extra precautions, here's a general overview of how you can attempt to grow saffron in South Texas:
1. Choose a suitable location: Find a spot in your garden that receives full sunlight and has good drainage. The area should be protected from strong winds and extreme heat. Consider planting in raised beds or containers with a mix that mimics the well-draining soil of the Mediterranean region.
2. Plant the saffron corms: Saffron crocuses are grown from corms, small bulb-like structures. Plant the corms in the fall, about 2-3 inches deep and 4-6 inches apart. Cover them lightly with soil and keep the soil moist but not soggy.
3. Protect from humidity and heat: Since South Texas has high humidity and summer heat, you'll need to take extra measures to protect the crocuses during these times. Place a shade cloth or netting over the plants during the day to reduce heat exposure and try to keep the humidity low.
4. Water sparingly: Saffron crocuses are drought-tolerant and don't require a lot of water, especially during their dormancy period in the summer months. Water the plants deeply but infrequently to prevent rot and ensure the soil doesn't become waterlogged.
5. Fertilize carefully: Saffron crocuses don't need a lot of fertilizer, as too much nitrogen can negatively affect flowering. Use a balanced fertilizer at half the recommended strength in the fall when planting the corms.
6. Harvest the saffron: Saffron crocuses typically bloom in late fall or early winter. When the flowers appear, gently pick the stigma and style (the three red thread-like strands) from each flower. Be patient as it takes many flowers to produce a small amount of saffron.
Remember that growing saffron in South Texas is challenging due to the climate, and the success rate might be lower compared to regions with a Mediterranean-like climate. If you find that the crocuses are struggling or not adapting to the conditions, it may be best to source saffron from other regions where it is grown more successfully.