I do not have a green thumb.  I have planted whole seed packets with little return.  With God all I need is a tiny seed of faith and He will do all the rest.

Mustard Seed Faith

Tiny little seeds so small
Grow to an impressive sight tall.
Mustard-seed-faith has the same effect,
It accomplishes more than you expect.
Where are the seeds found? What need you do?
Where do you plant them? When does increase come to you?
Mustard-seed faith begins its start,
When the truth is planted in your heart;
When you speak it clear;
It is planted in prayer for God to hear.
Answer comes at just the right time,
God is in control of it all, it is as He designs.
To receive; believe and speak; wait with confidence intact.
You will be astounded at God’s provisions you get back.
God’s Word is the seed planted in the good soil of an abundant life;
As you testify and speak in name of Christ,
He waters and for the seed cares.
You must trust and keep praising Him in your prayers.
Enjoy the time as your faith becomes what others too can see,
A good work, grown from your tiny little seed.

Matthew 17:20
He said to them, because of your little faith. For truly, I say to you, if you have faith like a grain of mustard seed, you will say to this mountain, ‘Move from here to there,’ and it will move, and nothing will be impossible for you