the roots patron

Expanded Spell List
1st *cactus mine, entangle*
2nd *barkskin, spike growth*
3rd *plant growth, speak with plants*
4th *dominate beast, grasping vine*
5th *insect plague, tree stride*
Bonus Cantrip
At 1st level, you learn the *thorn whip* cantrip, which counts as a warlock cantrip for you but not towards your number of cantrips known.
Grasping Roots
Also, at 1st level, when you cast a warlock spell of 1st level or higher, you can have a square of roots and vines appear at a point within either 30 feet of yourself, or within 5 feet of the target of your spell (your choice). The square is a number of feet long equal to 5 + 5 x the level of the slot expended, and it is difficult terrain for all creatures except ones you designate. This terrain lasts for 1 minute, until you cast another warlock spell of 1st level or higher, or until you use your action to have the roots wrap up a creature of your choice that is standing in the terrain.
When you do so, the creature must succeed on a Dexterity saving throw, or be restrained until the end of your next turn and take 1d6 bludgeoning damage for every level of the slot originally expended, taking half the bludgeoning damage without additional effects on a successful save.
Nature's Steps
Beginning at 6th level, you ignore difficult terrain. Additionally, you can choose to not leave any tracks or traces of your movement.
Vegetative Shield
Starting at 10th level, when you are targeted by an attack, you can use your reaction to coat yourself in a layer of extremely resilient vegetation. Until the end of your next turn, your AC increases by an amount equal to your Charisma modifier (a minimum of 1), you have resistance to bludgeoning, piercing, and slashing damage, and you are vulnerable to fire damage.
After using this feature, you must take a short or long rest before doing so, again.
Prickled Prison
At 14th level, when you hit a Large or smaller creature with an attack, you can choose to form a giant plant around the creature, for 1 minute. The creature takes 3d10 piercing damage, and is blinded and restrained, but has total cover. At the start of each of the creature's turns, it takes an additional 3d10 piercing damage. The creature can use its action to make a Strength saving throw, ending the effect on a success.
After using this feature, you must take a long rest before doing so, again.