🌱 How to Keep Your Hydroponic Garden Thriving as the Weather Cools Down

April 23, 2025 Denis Matthews

As the air gets crisper and the days grow shorter, your hydroponic garden might need a little extra love to keep producing those fresh, homegrown greens. The good news? Autumn and winter are fantastic seasons for growing with The Salad Table — you may just need to make a few simple adjustments.

Here are our top tips to keep your hydroponic garden happy and healthy through the cooler months:

🌡️ 1. Watch Your Water Temperature

Cooler air temps can bring your nutrient solution below the optimal range (18–22°C). If it gets too cold, your plant growth may slow down.
Quick Fix: Try moving your system into a sunnier spot or using a small aquarium heater to gently warm the water.

💡 2. Adjust for Less Daylight

Shorter days mean less natural light for your plants.
Solution: If your system is indoors or shaded, consider using a grow light for 10–12 hours a day to supplement the sunlight and keep those leafy greens thriving.

🥬 3. Grow the Right Crops

Cool-season crops actually love this time of year!
Try growing:

Lettuce varieties
Spinach
Kale
Rocket
Coriander
Chives
These leafy heroes don’t mind the chill and are super productive in a hydroponic setup.

🧪 4. Check Nutrients Regularly

Plants drink less in cooler temps, which means nutrient levels can become more concentrated.
Tip: Top up with fresh water more often if needed. The Salad Table nutrients are perfectly balanced — just follow the instructions for best results.

🧤 5. Protect from Frost (If You’re in a Cold Zone)

If you’re in a frost-prone area, move your Salad Table under cover or indoors overnight. A protected patio or greenhouse works wonders.

🍃 What to Plant Right Now

Autumn is the perfect time to start:
✅ Lettuce Mix
✅ Rocket
✅ Spinach
✅ Basil (if indoors or warm northern Aus climate)
✅ Spring Onions
✅ Herbs like coriander, parsley, and mint

Final Thought:
Hydroponics is all about control — and even in the cooler months, it’s easier than ever to grow your own fresh, healthy food right at home. With just a few tweaks, your Salad Table will keep producing crisp, delicious greens all season long.

Need new seeds or nutrients?
We’ve got everything you need for a fresh start this season. Head to thesaladtable.com.au and stock up for your autumn grow!