When God talks about seeds, He asks us how are we sowing? Is it from the heart or is it done with an attention to self sufficiency? We must continually look at the sufficiency of the Creator and have a receptive heart, just as the heart is compared to the soil in Matthew 13. Whenever we plant Gods Word, we need to continue watering and removing the invasive weeds! Then He will bring forth a fruitful harvest, Amen! 
a single mustard seed