Seed Germination Time Chart: How Many Days Each Seed Takes to Sprout

Key Takeaways

Why the same seed takes 5 days one time and 12 the next

A seed is a sealed packet of stored food waiting for the right signals. It needs the right warmth, steady moisture, air around it and sometimes light. When all four line up, it sprouts at its fastest. When one is off, it waits, and that wait is why days on a chart are always a range and never a single number.

This chart shows two kinds of numbers side by side. The first is the germination days printed on each My Mali seed pack, which is what you will read on the packet in your hand. The second is lab and field data from university extension services. Those are US trials, not Indian ones, so use them to understand patterns, not as exact promises for your balcony.

Germination time chart: My Mali seed packs

Every figure below is copied from the product page of that seed. Harvest or bloom days are counted from sowing. Where a page does not state germination days, the table says so instead of guessing. Start with the fast sprouters, then check the slower groups.

Fast: sprouts in about a week or less (4-8 days)

Medium: sprouts in 5-10 days

Slow: allow up to two weeks (7-14 days)

Not stated on pack

The product pages for the seeds below list harvest days but no germination days, so the chart does not invent one. Use the extension table further down as a rough guide, and treat it as a US reference.

Browse the full range in vegetable seeds and flowering seeds, and open each product page for the sowing depth and spacing printed on that pack.

What do university trials say? Days to emerge by temperature

The University of California Master Gardener Program publishes a table of days to emerge at different soil temperatures, based on older UC Davis research. Here are the figures at 20°C (68°F) and 25°C (77°F) for crops that match My Mali seeds. These are US trials. The Celsius numbers are my own conversion from the published Fahrenheit values.

For flowers and herbs, the Iowa State Extension germination table lists zinnia, cosmos and sunflower at about 5-7 days at 21°C, petunia at 7-10 days at 24°C, annual aster at 7-10 days and basil at 10-14 days at 18-21°C. Iowa State does not list marigold, dahlia or coriander, and we found no reliable extension figure for methi, bottle gourd or ridge gourd, so for those the pack days are the only number we give.

The five things that set the number of days

1. Temperature

Temperature changes the timing more than anything else. The UC Master Gardener table shows tomato taking 42.9 days at 10°C but 5.9 days at 25°C, and the page itself says tomato may still germinate at 10°C but takes over 40 days. Heat is a problem too: spinach and lettuce show zero germination at 35°C, and onion slows from 3.6 days at 25°C to 12.5 days at 35°C.

What counts as the best range? The UNH Extension fact sheet says 18-24°C (65-75°F) suits most plants. The UC table lists wider ranges, 18-29°C for tomato, carrot, radish and beetroot, and 29-35°C for okra. So sources differ a little. A safe working rule from both: aim for about 20-25°C for most seeds, and give heat lovers like okra and brinjal a warmer spot.

2. Moisture

The NC State Extension Gardener Handbook says an adequate, continuous supply of moisture is needed for germination. UNH adds that the moisture should be steady, without swings. In practice a pot that dries out on a hot afternoon and gets soaked at night does more harm than one that stays evenly damp. Our potted plant watering guide covers how often to water by season.

3. Air (oxygen)

All viable seeds breathe, as the UNH fact sheet puts it, and when oxygen is limited germination can be badly slowed or stopped. NC State says the sowing medium should be loose and well aerated. A soggy, compacted mix works against you twice: it holds too much water and too little air. A light mix helps, and our seed-starting mix guide shows one you can make at home.

4. Light

Light helps some seeds and holds others back. Iowa State lists petunia as needing light, and lists zinnia, cosmos, sunflower and basil as seeds to cover. The My Mali petunia pack says to sow about 0.5 cm deep, so cover petunia only with a very thin dusting of mix and press it gently. If you want the full method, read our petunia from seed guide.

5. Seed age

A seed sprouts only if it is alive and conditions are right, as UNH puts it, and NC State warns that the chance of germination goes down with age. The packet date and storage matter, which is covered in the shelf-life section below.

Does soaking make seeds sprout faster?

Only for some. NC State explains that a hard seed coat can block water and gases, and that is the case soaking is meant to fix. Our 5 Secrets to Near-Perfect Germination guide suggests an overnight soak in room-temperature water for hard-coated seeds like peas, beans, nasturtium and okra, and no soak for tiny seeds like lettuce and most flowers. Many online posts give exact soak hours for gourds and coriander, but we found no university or ICAR source for those times, so follow the instructions on your pack.

Why are my seeds not germinating after 7 days?

First, check your pack. Carrot, capsicum, dill and aster are printed at 10-14 days, and coriander, brinjal, chilli and petunia at 7-14 days. At day 7 these are still on schedule. If your seed is meant to be fast and still nothing shows, use this table. No single source covers this exact question, so the table puts together the extension facts above. It is a practical checklist, not a diagnosis.

For a seasonal check, our October sowing guide explains why daytime highs matter before you sow winter crops. For deep pots and slower roots, see the carrot in pots guide, since carrot is among the slowest sprouters in the chart.

Common mistakes that make seeds look dead

• Digging up seeds to check. This tears the first root. Wait until the end of the pack range.
• Re-sowing on day 7 on top of the old seed. If the first batch sprouts late, you get a crowded pot.
• Using one watering rule for every pot. A shaded pot stays damp for days, a terrace pot can dry in hours.
• Burying tiny seeds. Petunia and other fine seeds want a very thin cover.
• Sowing in the wrong temperature window. The UC data shows how sharply days change with temperature.
• Keeping old seed for years without a test. Strength falls with time, so sow a pinch extra or run a small test first.

How long do seeds stay good?

Colorado State Extension says seed moisture and storage temperature are the most important factors in how long seed keeps, and that seed stays good longer when it is dry, below 8% moisture. Their table gives the typical life in years under cool, dry storage. Other sources give slightly different numbers (Oregon State lists onion at 2-3 years, for example), so treat these as typical, not exact. These are US figures, and we found no Indian equivalent.

The longest figure in that table is 5 years. We found no source that supports 20-year-old vegetable seed, so a very old packet is a gamble, not a plan. Humid Indian homes are tougher on seed than a cool, dry cupboard, so keep packs sealed and away from heat. That last point is our own judgement, not a sourced figure.

What germination percentage is normal in India?

Even good seed does not sprout 100%. The TNAU Seed Centre lists the minimum germination for certified seed. The Indian Minimum Seed Certification Standards (Central Seed Certification Board) set the same kind of minimums for flowers and a few other crops. These apply to certified seed. They are minimum limits, not what you should expect from every pack.

The Indian standards say certified seed is valid for nine months from the date of test, extendable by six months after a retest. We did not check the rules for other types of packet seed, so we do not claim the same percentages apply to every pack. My Mali states its own target of 95%+ germination before dispatch on its Germination Promise page. That is the company target, not a government standard.

A simple wait-and-check plan

1. Write the sowing date and the pack range on a label.
2. Keep the mix evenly damp and the pot in a spot near 20-25°C.
3. Do not disturb the soil until the last day of the pack range has passed.
4. If nothing shows after the full range, check temperature and moisture against the table above.
5. Fix the cause first, then sow a second batch in a fresh pot, so old and new seeds do not crowd each other.

Conclusion

Germination is a range, not a date. Read the days on your pack, keep the soil evenly damp and warm, and give the seed until the end of its range before you decide it has failed. If you sowed as guided and a pack really falls short within the 14-day window, the Germination Promise covers a free replacement. Browse vegetable seeds and flowering seeds for packs with the sowing days printed on each page.