Complete Guide: How to Properly Resow a Lawn

Overseeding your lawn is the foundation for a lawn that remains thick, healthy, and beautiful over the long term. With the right preparation, the appropriate seed, and consistent care, you’re sure to succeed.

1. The Right Time

The best time to reseed is:

Spring or Fall

These seasons offer ideal conditions for germination and root development.

2. Soil Preparation (the most important step)

Replanting is especially advisable when the soil has been subjected to heavy use, such as from construction equipment.

Loosen the soil

Loosen the soil deeply or till it (a rotary tiller is recommended)
Depending on the soil type, work in sand or humus
At the same time:
- turbogrün Water Manager
- turbogrün Lawn Aerator
  Get involved—it'll save you a lot of trouble later on

Grade the ground

Level the floor
Roll it out so the base settles

Recommendation:
Ideally, carry out this work in the fall and let the soil rest over the winter.

In the spring:

Weed Removal
Smooth out the surface again

3. Check the pH level (especially in the spring)

Before sowing, it is recommended to take a soil sample to determine the pH level.

If the soil is too acidic, it needs to be limed
A pH level that is too low can cause lawn seeds to be scorched and prevent them from germinating

👉 Important:
Wait 4 weeks after liming before sowing.

4. Basal Fertilization Before Planting

Before sowing, the following products are incorporated into the soil:

10 g/m² TurboGreen Long-Lasting Lawn Fertilizer
or
50 g/m² TurboGreen Organic Lawn Fertilizer
plus 10 g/m² of Turbogrün lawn aerator

Pro Tip: Water Manager

1 kg/m² Turbogrün Water Manager
Work it into the top 10 cm of soil
Smooth out the surface again and roll it out
Let the soil settle for a few days

The water manager acts as a natural water reservoir and prevents hydrophobia.

5. Sow grass seed

It's time to sow—choosing the right seed mix is crucial.

Spread the seeds evenly
Best used with a turbo spreader (settings 4–5)

Pro Tip: The Sandwich Method

Lightly roughen the surface
Sowing Grass Seed
Spread approximately 0.5 cm of lawn soil evenly
Roll out the dough

→ Ensures optimal ground contact and protects against bird damage

6. Watering After Sowing

Consistent moisture is crucial during the first 20 days:

Keep the soil moist at all times
Water briefly 4–5 times a day
Especially important during hot weather or when there is a lack of rain
Be sure to avoid letting it dry out

7. First Pruning & First Fertilization

First pruning when the plant reaches a height of 5–10 cm
Start by mowing only the tips (no more than ⅓ of the blade length)
After that:
- Apply 20 g/m² of fertilizer
- soak it thoroughly

Then gradually reduce the cutting height:

only after every 3rd or 4th mowing
Never cut more than ⅓ of the blade length

8. Care During the First Few Months

At first, weeds (e.g., lamb's quarters) may sprout along with the crops → no problem; they'll disappear on their own with proper care
Starting now:
- Fertilize every 2 months
- Mow 1–2 times a week
- Always use sharp knives or a spindle