Hydroponic Plant Growing Data

RGJ Hydroponics division specialises in hydroponic systems for your home, farm and business.
RGJ Power Ltd
Hydroponic Gardening Plant Growing Data

Site Navigation

Our Products
RGJ Power Products and ServicesAll of RGJ Powers products & services on one page.

Click Here

The Importants of Ph
The Importants of PhPH stands for Potential Hydrogen. All Hydroponic nutrient solutions need to be kept at the proper PH if they are to be used by the plants.
Read More

Hydroponic Accessories
Professional Hydroponic AccessoiresHigh quality accessoires for your Hydroponic system shipped to your door
Click Here

Growing Mediums
Hydroponic Growing MediumsThere are many Hydroponic growing mediums that plants will thrive in provided they are used correctly in conjunction with the other aspects of the Hydroponic growing system
Read More

Careers at RGJ Power LtdRGJ Power has opportunities to further your career thru-out the world.
Work for a 21st century company

View Openings

Client Log-In
Login to your account:
Login Name:

Customer Service
Customer ServiceContact RGJ Power today for a free quote or answers to your questions
Click Here

Want your hebs and vegatables to grow to their maximum level?
Use our plant growing data to obtain the best results.
  • Lettuce, tomatoes, cucumbers, peppers, herbs & more
  • Find the correct Ph level for your hydroponic plants
  • The perfect lettuce - everytime

  • Learn all about Plant Growing Data, Ph levels, PPM nutrient strength levels below....
    Vegatables, Fruits & Herbs

    LETTUCE: Lettuce requires fast growth for best results. It requires a lot of potassium to grow well. Lettuce grows very well with 8-15-36 Hydroponic fertilizer with the Ph adjusted to 6.4 for seedlings and 6.0 for mature plants. A general nutrient PPM can be from 560 - 840 depending on the variety of lettuce being grown. Some varieties of lettuce are nitrogen sensitive and can get leaf tip burn. Calcium and Magnesium sulphate must be added separately to the Hydroponic solution as it is usually not part of the mix. Lettuce does not need a lot of strong light and we grow them very successfully under fluorescent grow lights. Use T5 or T8 bulbs if you use Fluorescent grow lights. T5s are the number one choice.

    PEPPERS and HERBS: Both Peppers and herbs also require a Hydroponic nutrient that is very high in potassium to perform well. A good Hydroponic nutrient solution for both of these varieties of plants is 11-11-40. Calcium and Magnesium must be added separately according to the nutrient directions. Adjust the Ph for these plants at 6.2 for seedlings and 5.8 for mature plants. Peppers need some pretty good light but a lot of the herbs do not. You can use T5 fluorescents for most of the herbs.

    TOMATOES: Most people think that tomatoes need a lot of nitrogen to grow well. This is not the case with tomatoes. Tomatoes do need a nutrient solution that is high in phosphorous though to produce lots of flowers and then fruit. A very good nutrient solution for them is 4-18-38 adjusted to 6.2 Ph. They grow extremely well with this and you can expect lots of fruit if they are grown correctly. Calcium and Magnesium sulphate needs to be added to the main solution. Tomatoes need a lot of light and the flower clusters need to be shaken in absence of bees or the wind.

    CUCUMBERS: Cucumbers take a lot of space to grow but in Hydroponic gardening cucumbers grow like crazy with 8-16-36 Hydroponic fertilizer. You need to add the Calcium and Magnesium sulphate separately like most good vegetable formulas but it is well worth the extra few minutes that it takes to do it. Adjust your Ph to 6.4 to 6.7. We always use the lower number to adjusting Ph because we know it go higher in just a few days or so. Cukes need to be spaced out quite a bit from each other so their big leaves can absorb the light and not shade each other too much. If grown properly the amounts of fruits you can get are just amazing. If you have a greenhouse you want to grow the self pollinating varieties.

    STRAWBERRIES: Growing Hydroponic strawberries can be an excellent hobby or a source of income if done on a larger level. Strawberries are fairly small plants and many plants can be grown in a relatively small area. Use a good 10-8-22 Hydroponic fertilizer for strawberries with added Calcium and Magnesium sulphate. Adjust your Ph here at 6.5 to 6.8. Strawberries do not like extreme heat so some areas are not suitable for growing strawberries. Almost everyone enjoys eating strawberries so this can be a good Hydroponic crop to grow for fun or for profit
    Grow the PERFECT Lettuce Everytime...

    A very good 5 gallon Hydroponic nutrient formula for lettuce is 2 teaspoons of 8-15-36 Hydroponic nutrients with 2 teaspoons of Calcium nitrate and 1 teaspoon of Magnesium sulphate.Mix the 8-15-36 in 5 gallons of water. Then mix the Calcium nitrate in a small cup of warm water until dissolved and add this to the 5 gallons of water and stir. Then mix the Magnesium sulfate in the small cup of warm water in the same way until dissolved and add to the 5 gallons of water and stir. Adjust the Ph to 6.4 for seedling plants and 6.0 for mature plants. Lettuce grows very well in this Hydroponic nutrient formula.
    PH Levels & PPM Nutrient Strength Levels

    All Hydroponic plants have their ideal PH levels as well as their PPM nutrient strength levels. Both of these are very important for optimum growth. In deciding what to grow compare some of the similar PH and PPM levels of various plants.Sometimes different Hydroponic plants can be grown together with the same Hydroponic nutrient solution tank if their PH and PPM nutrient levels are not too far off from each other. Other things to be taken into consideration before doing this would be plant sizes, intensity of light needed, harvesting methods and some others.
    VEGETABLE Ph, CF & PPM Levels

    VEGETABLES          PH          CF          PPM

    Artichoke           6.5-7.5      8-18      560-1260

    Asparagus          6.0-6.8     14-18     980-1260

    Beans                6.0           20-40     1400-2800

    Beetroot            6.0-6.5      8-50      1260-3500

    Broad beans       6.6-6.5      18-22     1260-1540

    Broccoli             6.0-6.8      28-35     1960-2450

    Brussell sprouts   6.5           25-30     1750-2100

    Cabbage            6.5-7.0      25-30     1750-2100

    Capsicum       18-22     1260-1540

    Carrots              6.3           16-20      1120-1400

    Cauliflower         6.5-7.0       5-20      1050-1400

    Celery               6.5            18-24     1260-1680

    Cucumber          5.5            17-25     1190-1750

    Eggplant            6.0            25-35     1750-2450

    Endive               5.5            20-24     1400-1680

    Fodder               6.0           18-20      1260-1400

    Garlic                 6.0           14-18      980-1260

    Leek                  6.5-7.0      14-18      980-1260

    Lettuce              6.0-7.0      8-12       560-840

    Marrow               6.0           18-24     1260-1680

    Okra                  6.5            20-24     1400-1680

    Onions               6.0-6.7      14-18      980-1260

    Pak choi             7.0            15-20     1050-1400

    Parsnip              6.0            14-18      980-1260

    Peas                 6.0-7.0        8-18      980-1260

    Pepino               6.0-6.5       20-50     1400-3500                        

    Potato               5.0-6.0       20-25     1400-1750

    Pumpkin             5.5-7.5       18-24     1260-1680

    Radish               6.0-7.0       16-22      840-1540

    Spinach             6.0-7.0       18-23      1260-1610

    Silverbeet          6.0-7.0       18-23      1260-1610

    Sweet corn        6.0             16-24      840-1680

    Sweet potato     5.5-6.0       20-25      1400-1750

    Taro                 5.0-5.5        25-30     1750-2100

    Tomato             6.0-6.5        20-50     1400-3500

    Turnips             6.0-6.5        18-24      1260-1680

    Zucchini            6.0             18-24      1260-1680

    Herbs Ph, CF & PPM Levels

    HERBS          PH          CF          PPM

    Basil                 5.5-6.5       10-16       700-1120

    Chicory             5.5-6.0       20-24       1400-1600

    Chives              6.0-6.5       18-22       1260-1540

    Fennel              6.4-6.8       10-14       700-980

    Lavender           6.4-6.8       10-14      700-980

    Lemon balm       5.5-6.5       10-16       700-1120

    Marjoram           6.0            16-20       1120-1400

    Mint                 5.5-6.0       20-24       1400-1680

    Mustard cress    6.0-6.5       12-24       840-1680

    Parsley             5.5-6.0        8-18        560-1260

    Rosemary          5.5-6.0       10-16       700-1120

    Sage                5.5-6.5       10-16       700-1120

    Thyme                5.5-7.0        8-16        560-1120

    Watercress       6.5-6.8        4-18        280-1260


    Hydroponic Systems
    Hydroponic SystemsView the different types of Hydroponic systems on offer from RGJ Power....
    Read More

    Nutrient Solutions
    Hydroponic Nutrient SolutionsHydroponic nutrients are the life blood of any Hydroponic system.
    Read More

    Starting Seedlings
    Starting SeedlingsStarting your own seedlings for Hydroponic gardening can be very simple and rewarding experience and will reduce your overall costs
    Read More

    Light & Nutrient Timers
    Light and Nutrient TimersBy using timers for your lights and pumps in your Hydroponic System, you will save time...
    Read More

    Grow Light Science
    Grow Light Science
    In Hydroponic gardening we can use what we know about Photosynthesis to our advantage. Photosynthesis means to....

    Read More

    Grow Light Selection
    Grow Light SelectionThere are many choices available for Hydroponic grow lights. A good Hydroponic grow light choice would depend on what you will be growing...
    Read More

    Plant Selection
    Plant Selection In Hydroponic gardening, virtually any types of plants can be grown successfully. Hydroponic growers raise many types of Hydroponic vegetables as well as...
    Read More

    Plant Growing Data
    Plant Growing Data In Hydroponic gardening, it is important to know what different types of nutrients are best for the different varieties of Hydroponic plants you will be growing...
    Read More

    Invest with RGJ Power
    Invest with RGJ Power LtdRGJ Power offers you many sustainable investment opportunities
    Click Here

    Site Home | FAQ | Careers | Privacy Policy | Site Map | Terms of Service | Hydroponics | Contact Us

    RGJ Power Ltd.

    Your 21st Century Company

    © 2008 - - Powered by RGJ Power Ltd - All Rights Reserved.
    UK Company No. 07127311