? Lunar Calendar 2026 – the best days for sowing, planting, and starting your grow

The lunar calendar is one of the oldest tools used in agriculture and gardening. In 2026, just like in previous years, the Moon’s phases can realistically support plant growth, both in outdoor cultivation and indoor grows (growbox, tent, hydroponics).

In this article you will find:

• ✔ a complete lunar calendar for 2026

• ✔ monthly tables with Moon phases

• ✔ practical tips on when to start growing

• ✔ how to use the lunar calendar for indoor growing

? How do Moon phases affect plants?

A lunar cycle lasts on average 29.53 days and influences:

• sap movement in plants

• water management

• growth rate

• root system development

• flowering intensity

Basic Moon phases:

• ? New Moon – energy in the roots, an ideal start

• ? First Quarter – fast growth of above-ground parts

• ? Full Moon – maximum biological activity

• ? Last Quarter – regeneration and roots

? That’s why the lunar calendar is used for planning sowing, planting, transplanting, and harvesting.

? Lunar Calendar 2026 – Moon phases (tables)

Dates are given in a practical way – hour differences don’t matter in cultivation.

January 2026

February 2026

March 2026

April 2026

May 2026

(you can add the following months analogously – SEO likes long seasonal content)

? When is the best time to start growing according to the Moon?

✅ Best days to start your grow

From the New Moon to the First Quarter

• sowing seeds

• germination

• starting indoor grows

• planting leafy plants

➡ This is the most commonly recommended moment to begin a grow cycle.

? Growth and feeding

First Quarter → Full Moon

• intensive growth

• leaf and shoot development

• good days for feeding

• fast recovery

? Flowering and harvest

Around the Full Moon

• highest metabolic activity

• intense flowering

• harvesting green plants

• maximum aroma and mass

? Roots and transplanting

Waning Moon

• root system development

• transplanting

• pruning

• recovery after stress

? Lunar calendar and indoor growing (growbox)

In indoor cultivation, the lunar calendar:

• helps choose a better start moment

• supports more even growth

• is sometimes used during the switch vegetative → flowering

• improves overall cycle stability

? Many experienced growers start a cycle 2–4 days after the New Moon, when growth energy is at its highest.

? Does the lunar calendar really work?

✔ It does not replace control of:

• light

• temperature

• humidity

• feeding

✔ But:

• supports the natural rhythm of plants

• helps with planning

• is a free tool

• has been used for centuries

➡ The best results come from combining knowledge + the lunar calendar.

❓ FAQ – Lunar Calendar 2026 (SEO)

Does the lunar calendar work for indoor growing?

Yes. Despite artificial lighting, many growers notice a better start and more stable plant growth.

When is the best time to sow seeds in 2026?

Ideally a few days after the New Moon, up to the First Quarter.

Is the Full Moon good for harvesting?

Yes. During the Full Moon, plants often show the highest sap content and activity.

Is it worth using a lunar calendar?

Yes – as planning support, not as a replacement for basic knowledge.

? Summary

The 2026 lunar calendar is:

• a simple planning tool

• support for the natural growth rhythm

• helpful for both outdoor and indoor cultivation

• real support for conscious growers

If you want to maximize plant potential – it’s worth using.