Glyricidea and other native tree saplings

I have been planning to grow glyricidea and other native tree saplings in the farm just to bring more and more shade. I can see that without shade, grown crops find it difficult to manage in summer. Now a days, in this area summer is harsh and rain has been reduced.

I bought some glyricidea seeds from amazon and also collected some seeds from farm and from road side and has been growing them. When rain pickup it will be planted in the farm. Glyricidea saplings from seeds has been doing good so far, they are drought tolerant and fights summer nicely. I have been growing them in plastic cups which costs around 6-7/ indian rupees, and this can be used for at least 4-5 years.

I should be growing them from February onwards so that they can be transplanted at the start of rainy season.