Your Wisdom score increases by 1, and Constitution score increases by 2.

No one knows how long they can live, Druid Blights grow quickly when properly given sunlight and water, and some ancient ones have been seen tending to groves from before memory. 

Druid Blight take on the alignment of the arch druid that sprung them.

Druid blights grow slow and steady through out their life increasing in size from small to medium at level 5.

Your base walking speed is 25ft. This increases to 30ft when you grow at level 5.

Your creature type is plant, rather than humanoid.

When you take a long rest, you root into the ground, and don't become unconscious, but enter an inactive motionless state similar to an elf's meditation. You don't need to eat, and don't need water if there is water in the earth when you root during a long rest. You are photosynthetic and take 1 level of exhaustion for each day spent without light which is removed when the need is met. This need can be met by 4 hours of the light spell, one hour of the daylight spell or one hour of sunlight. When traveling underground, most druid blight learn the light cantrip or make friends with someone who has it available so that this need can be met during short rests.

Your body is the result of powerful druidic magic, and a common simple seed. Choose two plant traits, one at 1st level, and one at 5th.

Choose from the following options of plant traits:

• Sweet Flowers - While normally you smell lovely, once per long rest, you can open up your flower buds releasing pollen; creatures within 10ft must succeed on a DC 8 + your proficiency bonus + your constitution modifier or be forced to use their reactions to sneeze.
• Fruiting - You can cast the Good-berry spell once per long rest. The berries resemble the natural produce of your plant type.
• Thorny Rebuke - Once per long rest, when you are hit by a melee attack, you can use your reaction make a melee attack against the creature, lashing out with thorns dealing 3 D10 piercing damage on hit.
• Stubborn Roots - As you walk, your roots grab the earth, your character has advantage against being moved by spells and attacks such as gust and lightning lure.
• Thick Bark - Add 1 to your AC regardless of your current armor.
• Bitter Toxins - When the druid blight is hit by the bite attack or swallowed whole, the creature making the attack must succeed on a DC 10 + your proficiency bonus Constitution saving throw or be poisoned until the start of its next turn.

You know druidic, and one other language known by the arch druid you are created from.