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In evidence
Green Calendar for October 2026
Your lawn heading into winter
Support the autumn growth of cool-season grasses and prepare warm-season grasses for winter dormancy: seeds, nutrition and products recommended by the Bottos green calendar for October 2026.
This month’s tasks
October is a transition month for lawn care: autumn can still bring spells of warm weather that encourage grass growth, as well as sudden drops in temperature. Daylight hours gradually decrease, and the lawn’s needs change as winter approaches.
Cool-season grasses: supporting autumn growth
Maintenance of cool-season grasses should therefore follow the course of the season, encouraging renewed growth when conditions allow and supporting the lawn during periods of slower growth.
For seeding and lawn renovation, the green calendar for October 2026 recommends selected seeds and starter fertilizers. Nutrition is complemented by products for root development, soil biofertility, greening and proper substrate hydration.
Lawn seeds
Choosing a seed range
SEEDS
Master Green seeds
Selected American cultivars of outstanding quality, with high endophyte colonization and deep, fibrous root systems. They make up the range’s various mixtures and provide intense, lasting color with fewer fertilizer applications.
Leaf texture
medium-fine
Color
dark green
SEEDS
Master Green Life seeds
The latest generation of US seeds, resistant to drought, heat and foot traffic. A special environmentally friendly seed treatment introduces an integrated mycorrhizal inoculum and beneficial microflora, providing natural protection against insects and diseases.
Leaf texture
medium-fine
Color
dark green
SEEDS
Zollaverde seeds
A seed range offering carefully balanced value for money, updated with new varieties that deliver ever-better visual and functional performance. High germination rates and a high level of purity characterize this range.
Leaf texture
medium
Color
bright green
Starter fertilization and renewed growth
Supporting seeding, renovation and growth
STARTER FERTILIZER
BioStart P
12-20-15
Phosphorus-based starter fertilizer with added humic acids, to speed up germination and improve mineral uptake.
Nutrient release period
8-10 weeks
Application rate
30-40 g/m²
STARTER FERTILIZER
Start Life
10-15-10 + 2 MgO + 0,5 Fe + Mn + Zn
Fertilizer for all lawn seeding and renovation operations, with humic acids, mineral nutrients and micronutrients.
Nutrient release period
6-10 weeks
Application rate
20-35 g/m²
MAINTENANCE FERTILIZER
Soil Life
16-0-15 + 2 MgO + I.M.I.
Maintenance fertilizer with 40% slow-release and controlled-release nitrogen, 16% organic matter and an integrated mycorrhizal inoculum.
Nutrient release period
6-10 weeks
Application rate
30-35 g/m²
GRANULAR FERTILIZER
Sprint N
27-0-14
High-nitrogen, Polyon-based controlled-release fertilizer, for use from late winter and late summer.
Nutrient release period
10-12 weeks
Application rate
30-35 g/m²
Biostimulants and bioactivated products
Supporting soil biofertility
MYCORRHIZAL INOCULUM
Tryko Plus
15-25 °C
Mycorrhizal fungal inoculum that helps combat fungal diseases of turfgrass.
Soil application
25-30 g/100 m²
In 10-20 liters of water
ORGANIC SOIL AMENDMENT
Power Liquid
Natural organic soil amendment with humic and fulvic extracts from Leonardite.
Soil application
500-800 g/100 m²
In 10-20 liters of water
Liquid fertilizers and plant strengtheners
Root development, greening and lawn support
LIQUID FERTILIZER
New Radical
3-16-0
Phosphate fertilizer that promotes deeper rooting and germination. Encourages an increase in humic substances.
Soil application
200-500 g/100 m²
In 10-20 liters of water
LIQUID FERTILIZER
Green Up
16-0-0 + 3,5 Fe
Nitrogen fertilizer with a greening and acidifying action that also helps control moss.
Foliar application
200-400 g/100 m²
In 5-10 liters of water
Soil application
300-500 g/100 m²
In 10-20 liters of water
PLANT STRENGTHENER
Si-Strong
Si-K
Silicon- and potassium-based bioinducer with a healing action on leaves.
Prevents the accumulation of harmful substances within leaf surfaces and fruit.
Foliar application
60-120 g/100 m²
In 5-10 liters of water
Soil application
200 g/100 m²
In 10-20 liters of water
Special products
Promoting proper substrate hydration
ROOTING AID
Water Plus
Rooting aid with a specific action to ensure proper substrate hydration.
More water available near the roots and lower water consumption.
Application rate
160-200 ml/100 m²
In 10 liters of water
Warm-season grasses: preparing for winter dormancy
With the arrival of autumn, the growth of warm-season lawns slows markedly, stopping completely in more northerly areas.
Before growth stops, it is time to apply targeted nutrition with Cold Time, an organo-mineral fertilizer designed to encourage sugar accumulation in the rhizomes and support renewed growth next spring.
The calendar also recommends continuing to apply Promoter until the lawn loses its color.
October is also the time to decide how to manage the lawn through winter: introduce a specific ryegrass mixture such as Macroseeding to maintain grass cover during the cold season, or allow warm-season grasses to undergo their natural winter yellowing while awaiting renewed growth the following season.
Products for warm-season lawns
Overseeding and preparation for the cold season
OVERSEEDING SEEDS
Macroseeding
A mixture of Lolium westerwoldicum selected specifically for turf and the latest generation of diploid Lolium perenne. Ideal for overseeding during low-temperature periods and on warm-season grasses where a short spring transition period is desired.
Leaf texture
fine
Color
bright
BIOSTIMULANT
Promoter
Naturally derived biostimulant rich in amino acids and secondary metabolites.
Belongs to the probiotic category, for protection and colonization of available spaces.
Application rate
50-250 g/100 m²
In approximately 8-10 liters of water
ORGANO-MINERAL FERTILIZER
Cold Time
4-3-8 + 2 MgO
Prepares the lawn for winter and reduces stress, facilitating spring growth.
Contains high-quality organic matter, plant-derived organic nitrogen and a high potassium content to promote winter resilience.
Nutrient release period
10-12 weeks
Application rate
50-60 g/m²
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